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Brand New 925 Sterling Silver Chain 18" 77.3g N925-160
- Product Code: N925-160
- Availability: In Stock
£295.00
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Certified & Hallmarked
Established Jeweller
Brand New 925 Sterling Silver Chain 18" 77.3g N925-160
The acquisition of a brand new, heavyweight sterling silver chain represents a commitment to both aesthetic excellence and material longevity. This 77.3-gram specimen has been fully verified for metallurgical purity and hallmarked to UK standards, ensuring a substantial asset that retains its value while providing a bold, polished appearance for daily wear.
Net Mass
77.30g
Assay Verified
Alloy Grade
925 Silver
Sterling Standard
Linear Span
18 Inches
Necklace Length
Reference
N925-160
Stock Serial ID
Workshop
Totnes
Devon, UK
Technical 7-Table Framework for Silver Assets
1. Metallurgical Composition & Alloy Stability
| Material | Silver % | Specific Gravity | Purity Guarantee | Application |
|---|---|---|---|---|
| Sterling Silver | 92.5% | 10.49 g/cm³ | Full UK Hallmark | Heavyweight Link Construction |
| Fine Silver | 99.9% | 10.49 g/cm³ | 999 Stamp | Bullion/Investment Only |
| Silver Plate | <1% | Variable | None | Fashion/Costume Jewelry |
Table 1 Analysis: This 77.3g item is composed of 925 Sterling Silver, the professional standard for high-durability jewelry. The inclusion of 7.5% hardening alloys ensures the links resist deformation under the significant tension of its own weight.
2. Link Geometry & Volumetric Dimensions
| Metric | Dimension | Technical Significance | Durability Rating |
|---|---|---|---|
| Width | 8.8 mm | High visibility profile | Maximum |
| Depth | 3.8 mm | Structural thickness | Maximum |
| Link Density | Solid Core | Resistance to crushing | Industrial Grade |
Table 2 Analysis: With a width of 8.8mm and a depth of 3.8mm, these links are engineered for a bold aesthetic. The "Solid Core" designation confirms these are not hollow links, protecting the asset from dents or "link collapse" common in mass-market new silver chains.
3. Clasp Mechanical Integrity Audit
| Component | Material Check | Mechanical Action | Safety Factor |
|---|---|---|---|
| Heavy Duty Clasp | Solid 925 Silver | Internal Spring Reset | High-Security |
| Soldered Links | Fusion Bonded | Zero Gap Verification | Maximum |
| Terminal Rings | Reinforced Gauge | Anti-Snag Finish | Professional |
Table 3 Analysis: Given the 77.3g mass, the clasp mechanism is subjected to rigorous snap-testing. We ensure the spring tension is calibrated to prevent accidental release, a critical feature for a chain of this weight class.
4. Regional Maritime Care Matrix
| Environmental Factor | Impact on Silver | Recommended Protocol |
|---|---|---|
| Saline Air (Devon Coast) | Accelerated Tarnish | Fresh Water Rinse |
| River Dart Humidity | Surface Oxidation | Micro-Fiber Polish |
| Urban Sulfur | Specular Dimming | Professional Annual Clean |
Table 4 Analysis: Totnes residents should be aware of coastal air effects. However, the mass of this 77.3g chain allows for frequent professional polishing without thinning the metal, a benefit not found in lighter silver products.
5. Structural Center of Gravity & Comfort
| Length | Linear Density | Drape Analysis | Comfort Rating |
|---|---|---|---|
| 18" (Standard) | 4.29g per inch | Balanced on collarbone | Exceptional |
| 20" (Long) | 3.86g per inch | Mid-chest hang | High |
| 24" (Extra Long) | 3.22g per inch | Sternum alignment | Moderate |
Table 5 Analysis: At 4.29g per inch, this chain provides a significant tactile presence. It is structurally ideal for supporting a heavy new gold pendant or silver equivalent without the chain kinking or twisting.
6. Hallmark & Provenance Benchmarks
| Marking | Definition | Verification Method |
|---|---|---|
| 925 Fineness | 92.5% Silver Purity | Legal Statutory Mark |
| Assay Office | UK Testing Center | Official Punch Verify |
| Condition | Brand New | Microscopic Surface Audit |
Table 6 Analysis: For items exceeding 7.78g, a UK hallmark is a legal requirement. This chain's hallmark serves as a permanent guarantee of authenticity, distinguishing it from unverified imports.
7. Asset Comparison: Quality vs Commodity
| Metric | H.E. Phillips Specification | Standard Retail Silver |
|---|---|---|
| Weight Profile | Heavyweight (77.3g) | Lightweight (10g-25g) |
| Verification | On-Site Precision Scale | Estimated Catalog Weight |
| Aftercare | Totnes Workshop Support | Limited/Outsourced |
Table 7 Analysis: Since August 2000, our focus has been on substantial pieces like the N925-160. This chain offers superior "Melt Value" floor and structural longevity compared to the thinner products found in generic jewelry outlets.
20 Technical FAQs: Engineering & Asset Management
Metallurgical & Weight Intelligence
1. Why is 77.3g considered a "Heavyweight" specification?
In the silver market, most 18-inch chains weigh between 5g and 20g. At 77.3g, this item possesses nearly four times the mass of a standard chain. This high linear density (4.29g per inch) ensures that the links are solid and resistant to "stretching" or thinning, which is the primary cause of chain failure over long-term use.
2. What does "Fully Hallmarked" mean for this chain?
In the UK, any silver item over 7.78 grams must be hallmarked by an independent Assay Office. This chain features the official marks confirming it has been tested for 92.5% purity. Unlike a simple "925" stamp, which can be applied by anyone, a full hallmark is a legal guarantee of metal content verified by a third party.
3. Is the 925 Sterling Silver alloy hypoallergenic?
925 Sterling Silver is generally safe for most people. The 7.5% alloy is typically copper, which is skin-friendly. Because this is a brand new item from a reputable source, it contains no nickel—the primary cause of metal allergies—making it suitable for sensitive skin throughout its lifespan.
4. How does the weight of 77.3g affect the item's resale value?
Heavyweight silver pieces hold their value exceptionally well because they have a high "intrinsic melt value." While fashion jewelry relies on design, a 77.3g chain is a physical asset. If silver prices rise, the value of this chain increases proportionally to its mass, providing a financial safety net that lighter items cannot offer.
Mechanical & Structural Security
5. Is the clasp designed to handle a 77g load?
Yes. A chain of this magnitude requires a heavy-duty clasp mechanism. The clasp on the N925-160 is engineered with a thicker spring gauge and a wider pivot point to ensure it can support the weight of the chain plus any additional pendant without the spring fatiguing or the gate failing.
6. Are the links solid or hollow?
These links are 100% solid. Hollow links are often used to make jewelry look larger while keeping costs down, but they are prone to denting and cannot be easily repaired. A solid 77.3g chain is structurally superior; it can be crushed or knocked without losing its shape, making it an "active-wear" asset.
7. Can this chain be shortened if 18 inches is too long?
Yes. Because the links are solid sterling silver, our workshop can technically remove links to adjust the length. This involves cutting, removing, and re-soldering the silver, then re-polishing. This is only possible with high-quality solid chains; plated or hollow items often cannot survive this process.
8. What is the tensile strength of an 8.8mm silver link?
While we don't perform destructive "break tests" on retail stock, an 8.8mm wide solid silver link has a tensile strength capable of withstanding significant force. It would likely require a weight exceeding several hundred pounds to snap a link, far beyond any stress encountered in daily wear.
Environmental Resilience & Care
9. Why does silver tarnish, and can it be prevented?
Tarnish is a natural chemical reaction between silver and sulfur in the air (forming silver sulfide). It is not a sign of poor quality; in fact, it proves the metal is real silver. You can slow tarnish by storing the chain in a dry, airtight bag and avoiding contact with perfumes or household chemicals.
10. How should I clean a chain of this thickness?
Because the links are 8.8mm wide, dirt can occasionally settle in the joints. We recommend a soft-bristled brush with mild soapy water for deep cleaning, followed by a professional silver polishing cloth. Avoid "silver dips" on heavy chains, as they can sometimes leave a white residue in the crevices.
11. Is it safe to wear this chain in the swimming pool?
We strongly advise against it. Chlorine is a harsh oxidizing agent that can blacken silver almost instantly and, over time, can weaken the metal's structure. If it does come into contact with pool water, rinse it immediately with fresh water and dry it thoroughly with a soft cloth.
12. Will the high polish finish dull over time?
Like all polished metals, microscopic scratches from skin contact and clothing will eventually create a "patina." This is normal for brand new items. However, because this chain is solid silver, it can be professionally buffed back to a mirror-like "Specular Reflection" at any time in our workshop.
Acquisition & Ownership Verification
13. How do I know this chain is brand new?
At H.E. Phillips Ltd, we clearly distinguish between our "Pre-Loved" and "Brand New" stock. This item (N925-160) is sourced directly from our new manufacturing partners, features zero wear on the link pivots, and has passed a new-item quality inspection before being listed for sale.
14. What is the benefit of buying from a Totnes-based shop?
Buying from 19 Fore Street, Totnes, provides "Physical Accountability." Unlike online-only sellers, we have been at this location since August 2000. You can visit us to have the item weighed, checked under a loupe, or serviced, ensuring you have a permanent point of contact for your investment.
15. Is a 77.3g chain suitable for men or women?
This is a unisex "Statement Piece." The 18-inch length sits prominently on the collarbone for most. Its 8.8mm width makes it bold enough for men's fashion while remaining elegant enough for women who prefer heavyweight, chunky jewelry styles.
16. Does the chain come with a guarantee?
Yes. We provide a full refund policy if there is any error in our description or if the item does not meet the specified hallmark standards. Our reputation as a family-run business since 2000 is built on the accuracy of our technical data and customer satisfaction.
Styling & Coordination
17. Can I pair this with a silver bracelet?
Absolutely. For a cohesive look, we recommend matching the link style. You can explore our new silver bracelets to find a piece with a similar 8.8mm width, ensuring a balanced aesthetic across your jewelry collection.
18. How does silver look alongside stainless steel watches?
Silver and stainless steel share a "cool" color palette. This chain pairs exceptionally well with high-grade timepieces from our Casio or Citizen collections, creating a professional and coordinated appearance.
19. Is this chain too heavy for a silver pendant?
On the contrary, its 77.3g weight makes it one of the safest choices for a pendant. It won't snap under the weight of a second-hand silver pendant charm, provided the pendant's bale (the loop) is large enough to accommodate the 8.8mm width of the chain.
20. What is the best way to store this chain when traveling?
To avoid tangling or surface scratching, store it in a dedicated jewelry roll or a soft pouch. Even though it is a heavyweight chain, keeping it separate from other items prevents "metal-on-metal" friction that could dull the brand new polished finish.
© 2026 H.E. Phillips Ltd - Your Official Authorised Horological and Fine Jewellery Specialist. All Technical Data verified for forensic accuracy.
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