Casio W-800H-1AVES 10-Year Battery 100m Water Resistant Square Digital Watch

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Product Code: W-800H-1AVES
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Casio W-800H-1AVES 10-Year Battery 100m Water Resistant Square Digital Watch | Technical Analysis | H.E. Phillips Ltd

Casio W-800H-1AVES 10-Year Battery 100m Water Resistant Square Digital Watch

Name: Casio W-800H-1AVES 10-Year Battery 100m Water Resistant Square Digital Watch
Brand: Casio
SKU: 614
Price: 30.00 GBP
Availability: InStock

The acquisition of a high-utility digital watch requires an understanding of electronic power management and hydrostatic case construction. This Casio W-800H-1AVES specimen features an efficient integrated circuit paired with a robust resin housing, evaluated at our Totnes workshop to verify its functional parameters, environmental protection thresholds, and timing accuracy.

Power Source 10-Year CR2025 Lithium Cell

Hydrostatics 100m WR 10 Bar Rated ISO 22810

Chassis Form Square High-Contrast LCD

IC Module 3239 Quartz Oscillator

Location Totnes Hub Devon, UK

Technical 7-Table Framework for Digital Assets

1. Sub-Category Navigation & Range Positioning

Model Classification	Primary Engineering Profile	Case Architecture	Inventory Link
Casio 10-Year Battery	Extended Power Efficiency & 10 Bar Sealing	Square Molded Resin	Casio
Casio Utility Chronograph	Multi-Alarm Tracking & Standard Timing	Compact Slim Profile	Casio

Table 1 Analysis: The W-800H-1AVES occupies a prominent segment within the utility digital tier. By combining a 100-metre hydrostatic depth rating with a ten-year operational life cycle, it circumvents the frequent battery change schedules common to alternative digital instruments, providing an optimal utility-to-mass ratio for field operations.

2. Material Composition & Physical Hardness Parameters

Structural Element	Material Substrate	Structural Hardness / Property	Functional Role
Bezel and Case Body	Synthetic Polyurethane Resin	High Impact Absorption Elasticity	Kinetic Energy Dispersion
Caseback Plate	316L Stainless Steel	Hypoallergenic / High Corrosion Resistance	Chassis Rigid Sealing Face
Display Crystal	Spherical Acrylic Glass	Shatter-Resistant Optical Polymer	Impact Fracture Prevention
Strap Assembly	Flexible Resin Compound	High Tensile Polymer Blend	Ergonomic Tension Security

Table 2 Analysis: The application of a specialized polyurethane resin casing guarantees low physical mass while maintaining structural resilience against mechanical stress. Acrylic crystal composition is chosen deliberately for its superior shatter resistance compared to standard mineral glass, allowing minor superficial scratches to be professionally hand-buffed without compromising optical clarity.

3. Electronic Module Specifications & Timing Drift

Technical Metric	Casio Module 3239 Specification	Quartz Industry Base Baseline	Mechanical Drive Comparison
Timing Regulation	Tuned Tuning-Fork Quartz Crystal	Standard Quartz Resonator	Escapement Wheel Assembly
Monthly Deviation	±30 Seconds Maximum Deviation	±30 Seconds Standard Deviation	±300 Seconds Average Variation
Oscillator Frequency	32,768 Hz Internal Frequency	32,768 Hz Internal Frequency	3 Hz to 5 Hz Balance Speed
Current Consumption	Ultra-Low Micro-Ampere Draw	Standard Milli-Ampere Draw	Kinetic Mainspring Storage

Table 3 Analysis: The integrated circuit within Module 3239 operates at an industry-standard 32,768 Hz frequency. Its internal division architecture ensures stable timekeeping parameters. Our workshop evaluation affirms that the low current draw from this specific electronic configuration is foundational to preserving stable digital segment mapping across a broad thermal scope.

4. Environmental Protection & Hydrostatic Sealing

Static Pressure Limit	ISO Laboratory Rating	Real-World Environmental Bounds	Gasket Construction
10 Bar Pressure	ISO 22810 Compliant	Surface Swimming and Snorkelling	O-Ring Compression Nitrile Seal
100 Metres Static Head	Approved for Aquatic Use	Unsuitable for Scuba Compressed Air	4-Screw Tension Compression Face

Table 4 Analysis: A static rating of 100 metres indicates the watch mechanism can withstand pressures equivalent to a 100-metre column of water under laboratory conditions. The compression barrier relies on a specialized nitrile rubber O-ring compressed uniformly by four independent steel fasteners on the caseback, ensuring protection against moisture entry during routine swimming exposures.

5. Dimensional Proportions & Ergonomic Data

Physical Dimension	Metric Measurement	Measurement Precision	Anatomical Wrist Compatibility
Vertical Case Length	44.2 mm Edge to Edge	±0.1 mm Technical Bounds	Standard Linear Wrist Coverage
Transverse Case Width	36.8 mm Total Width	±0.1 mm Technical Bounds	Medium Balanced Profile
Chassis Thickness	13.4 mm Case Depth	±0.1 mm Technical Bounds	Low-Profile Sleeve Clearance
Total Net Weight	37.0 Grams Total Mass	Calibrated Electronic Scale	Zero Fatigue Prolonged wear

Table 5 Analysis: The 44.2 mm by 36.8 mm dimensions yield an ergonomic footprint suitable for various wrist profiles. Minimizing total weight to 37.0 grams including the factory strap reduces inertial forces during physical activity, ensuring the watch sits securely without causing skin chaffing or muscle fatigue.

6. Authenticity, Verification & Origin Benchmarks

Identification Element	Showroom Observation	Purity Status	Regulatory Protocol
Case Stamping	Laser-Etched Model Code	Factory Original Model Line	Traceable Production Group
Precious Metal Check	No Assay Verification Required	Non-Precious Polymer / Steel	Exempt from Hallmarking Acts
Module Identity	LCD Diagnostic Test Confirmed	Genuine Component Logic	Casio Quality Standard

Table 6 Analysis: The W-800H-1AVES is constructed strictly from high-grade engineering polymers and 316L stainless steel. Because it contains no precious metals, it is exempt from the UK Hallmarking Act and requires no Assay Office markings. Purity and legitimacy are verified in our workshop via factory code alignment, module configuration tests, and physical serial numbering.

7. Asset Architecture: Polyurethane Resin vs. Precious Metal Jewellery

Technical Metric	Casio W-800H Polymer Tool	Precious Metal Jewellery Asset
Primary Structural Goal	Kinetic Durability & Environmental Resilience	Material Capital Retention & Form Purity
Elastic Deformation Limit	High Deflection / Impact Recovery Property	Low Deflection / Permanent Malformation Risk
Maintenance Requirements	Periodic Exterior Cleaning / Decadal Cell Swap	Professional Metal Polishing / Prong Adjustments

Table 7 Analysis: Evaluating this watch next to precious metal items reveals a clear distinction in engineering priorities. While luxury precious metals preserve capital value based on weight standards, this resin tool is built entirely to absorb hard physical impacts and resist environmental hazards, serving as an enduring utility piece.

Official Factory Operation Guide Reference

Casio W-800H-1AVES Operation Guide Diagram

Figure 1.0: Casio W-800H-1AVES Operation Guide. View Official Factory Manual (PDF)

20 Technical FAQs: Engineering & Asset Management

1. Electrical Power & Cell Longevity

1. How does the CR2025 cell achieve an uninterrupted ten-year life cycle?

The ten-year capability is accomplished by matching a high-capacity lithium-manganese dioxide coin cell (CR2025) with a proprietary complementary metal-oxide-semiconductor (CMOS) integrated circuit. This internal circuit restricts steady-state power draw to a low micro-ampere profile during normal timekeeping mode. The factory calculation assumes an operational budget consisting of one single backlight activation of 1.5 seconds and one brief daily alarm deployment of 20 seconds per 24-hour cycle, preventing premature cell depletion.

2. Does extended use of the amber LED backlight impact this ten-year lifecycle?

Yes, excessive use of the amber light directly pulls down the battery reserve curve. The illumination element draws significantly more current from the cell than the low-power liquid crystal display segment updates. If the backlight button is pressed several times daily, the increased current demands will exhaust the lithium cell ahead of schedule, reducing the overall operational cycle to perhaps five or seven years depending on user behavior.

3. What are the storage care guidelines for the watch when it is not worn?

The watch should be stored within a dry atmosphere at temperatures maintained between 5°C and 30°C. Storing the unit in hot conditions accelerates internal chemical degradation inside the lithium cell, which can shorten its overall lifespan. It should be kept isolated from any magnetic fields or heavy machinery, and stored away from harder materials that could scratch the soft acrylic face.

4. Can the battery cell be replaced at your Totnes service workshop?

Yes, our service technicians at 19 Fore Street can complete battery replacements. The procedure requires removing the steel plate, lifting out the dead lithium cell, setting in a new CR2025 cell, and executing an AC short-circuit reset. Crucially, the internal compression seal must be lubed with silicone grease to maintain its water resistance, a step we execute to prevent subsequent leak issues.

2. Module Architecture & Logic Performance

5. What specific parameters guide the accuracy of Casio Module 3239?

Module 3239 relies on a quartz crystal cut precisely into a tuning-fork shape, vibrating at a frequency of 32,768 Hz. It maintains a maximum monthly timing variance of ±30 seconds under normal temperature conditions. Extreme hot or cold shifts can affect this vibration rate slightly, but the crystal will return to its standard performance range once it is back in a moderate climate.

6. How does the calendar display layout track varying month lengths?

The pre-programmed calendar logic inside Module 3239 automatically adjusts for months of 28, 29, 30, and 31 days. It is built to accurately factor in leap year cycles through the year 2099 without requiring any manual date shifts. The processor updates the day-of-the-week tracking concurrently, preventing discrepancies at the start of a new month.

7. Can the display switch freely between 12-hour and 24-hour formats?

Yes, users can toggle between standard 12-hour AM/PM formatting and a 24-hour military-style configuration. Pressing the bottom-right button when in normal timekeeping mode switches the system logic instantly. This formatting adjustment carries over to the alarm and dual-time displays for a consistent reading across all settings.

8. What functions are supported by the integrated stopwatch sub-system?

The module includes a 1/100th-second stopwatch capable of measuring elapsed time, split times, and two finish times up to a limit of 23 hours, 59 minutes, and 59.99 seconds. The display updates at high frequency through the initial minutes before adjusting to longer timing segments, providing reliable utility tracking for diverse applications.

3. Hydrostatic Engineering & Case Security

9. What real-world activities are safe under the 10 Bar water resistance rating?

The 10 Bar (100-metre) water resistance rating permits routine surface swimming, snorkeling, sailing, and everyday poolside use. However, it does not mean the watch can be taken on deep scuba dives using compressed air tanks. The pressure seals are not designed to handle the variable dynamic forces and deeper pressures of scuba exploration, which could cause a seal breach.

10. Can the watch buttons be safely pushed while submerged?

No, the side buttons must not be pressed while the watch is underwater or wet. Operating the buttons while submerged can allow water droplets to squeeze past the internal push-rod seals, leading to condensation or circuit damage. All adjustment locks should be set before entering the water and left alone until the case is dry.

11. Why does hot water from a shower pose a risk to the water seals?

The swift heat changes from a hot shower can cause the resin case body and the steel caseback to expand at different rates. This expansion variance can momentarily compromise the rubber O-ring seal. Furthermore, soap surfactants reduce surface tension, making it easier for moisture to breach the case barrier, so we recommend removing the watch before showering.

12. How does the four-point caseback design seal out moisture?

The case utilizes four independent steel screws that fasten directly into threaded anchors inside the polyurethane body. This layout delivers uniform downward pressure across the perimeter of the flat steel caseback, compressing the nitrile rubber seal. This creates a secure, long-lasting barrier against dust and humidity.

4. Materials Science & Structural Toughness

13. What advantages does a polyurethane resin case have over steel?

Polyurethane resin provides superior kinetic shock absorption, acting as a buffer that cushions the internal electronic quartz module from impacts. Resin is also highly resistant to perspiration corrosion, coastal brine, and urban chemicals. It achieves this durability while weighing significantly less than steel, ensuring exceptional comfort during physical tasks.

14. Is the acrylic crystal prone to permanent cracking or fracture damage?

The spherical acrylic polymer is chosen for its excellent flexibility and fracture resistance under direct impact. While it can pick up superficial abrasions more easily than mineral glass, it is highly resistant to shattering. Minor surface marks can be easily polished out with fine abrasive paste to bring back its clear view.

15. Is the resin strap assembly hypoallergenic for long-term wear?

The polymer resin compound used in the strap is non-porous and formulated to be inert, preventing skin reactions for most users. It isolates the wrist from the metal caseback plate, minimizing direct contact for individuals with nickel sensitivities. Keeping the strap clean of sweat buildup will help prevent skin irritation over time.

16. What is the structural function of the 316L stainless steel caseback?

The 316L stainless steel caseback serves as a rigid rear platform for the resin chassis. This low-carbon molybdenum alloy is highly resistant to pitting and rust from sweat or salt water. It provides a smooth, non-reactive surface against the skin while keeping the internal case shape perfectly secure.

5. Logistics, Support & Verification

17. Does the watch carry any hallmarking stamps from an Assay Office?

No, the Casio W-800H-1AVES features no assay hallmarks because it is made entirely of resin and steel, containing no precious metals. It is completely exempt from the UK Hallmarking Act, and its authenticity is backed directly by our verification procedures as an established stockist.

18. How can I verify that my Casio watch is a genuine original product?

Genuine status is confirmed by checking the precise layout of the liquid crystal elements, testing the diagnostic screen modes (accessed by holding down multiple buttons simultaneously), and inspecting the factory serial stamps on the steel backing plate. Every watch we offer is sourced from trusted distribution channels to guarantee it is an authentic model.

19. What basic cleaning steps help preserve the matte finish of the resin?

The watch should be cleaned occasionally using lukewarm fresh water and a mild, neutral soap solution. A soft-bristle brush can be used to clear dirt buildup around the buckle and buttons. Avoid harsh solvents, gasoline, or aerosol sprays, as these chemicals can dissolve the resin finish and damage the watch surface.

20. What technical support is available through your independent showroom?

We provide full aftercare support from our Totnes showroom, including function setup guidance, replacement strap fittings, and water resistance testing. Our deep horological experience allows us to diagnose any module or seal issues locally, offering dependable support throughout the lifespan of your timepiece.

Expert Credentials & Final Thoughts

Mark Willetts, Founder & Senior Horological Specialist
With over a quarter-century of dedicated service in the horological and fine jewelry trade, I have focused on the technical assessment, functional verification, and preservation of timing instruments. Since establishing H.E. Phillips Ltd in August 2000, our independent workshop at 19 Fore Street in Totnes has maintained a commitment to strict technical transparency and material honesty. Every timekeeping device added to our collection undergoes careful evaluation to confirm that its operational parameters, casing seals, and performance specifications line up exactly with our rigorous standards. We believe that true reliability relies on factual accuracy and a deep understanding of instrument construction.

Selecting a utility digital watch like the Casio W-800H-1AVES represents a practical choice focused on long-term efficiency and proven resilience. By matching an ultra-low-power CMOS module with a sturdy, shock-absorbing resin shell, this model delivers reliable service across demanding environments without the upkeep needed for more delicate mechanisms. Whether you visit our Totnes showroom for a live demonstration or consult our technical archives, your choice is backed by twenty-five years of family-owned horological expertise. At H.E. Phillips Ltd, our commitment to technical support and performance clarity continues long after you acquire your timepiece.

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