The Casio G-Shock DW-6900TR-9ER is a special edition digital watch released as part of the 30th Anniversary of the iconic 6900 line. It revives one of the original bold colorways (yellow) from the DW-6900H “Thrasher” series of 1995, combining nostalgia with modern durability, sustainable materials, and updated features.

Key design touches include a metal front light button etched with a “G”, a case back engraved with “SHOCK RESIST” surrounded by 30 stars commemorating 30 years, and the appearance of “SINCE 1995” on its LCD when the backlight is activated. The case, bezel, band, and other components make use of bio-based resin to reduce environmental impact. With its signature rugged G-Shock build, this is a timepiece for everyday wear, sports, street fashion, and anyone who appreciates toughness with character.

FAQs

1.      What does “DW-6900TR-9ER” stand for?
The “DW-6900” is Casio’s model series (the 6900 line), “TR” marks the 30th-anniversary “Trio” recolors of the line, and “9” indicates this yellow color variant (Casio often uses number codes for colors; “9” tends to be yellow). The “ER” suffix is often Casio’s code for certain markets (Europe, etc.) for the same model. So this watch is the yellow 30th Anniversary version of the DW-6900.

2.      When was this model released?
It was released in 2025 as part of the 6900 line’s 30th anniversary collection. The announcement for the DW-6900TR series including the yellow “9” model was in March 2025. 

3.      Is this watch durable / shock resistant?
Yes. As a G-Shock it has the classic shock-resistant construction that protects it from impacts, drops, and vibrations. Casio’s specifications explicitly say “Shock resistant”. 

4.      How water-resistant is it? Can I swim or dive with it?
It has 200 metres (20 bar) water resistance, which means it’s suitable for swimming, snorkeling, and other water sports. However, for scuba diving (especially deep diving) you may want a dive-specific watch. The 200 m rating means you can safely immerse it, but not necessarily for prolonged deep dives. 

5.      What is bio-based resin? How is it different from regular resin?
Bio-based resin is made from renewable organic resources (plants, biomass) rather than purely petroleum-derived materials. The idea is to reduce environmental impact. In this watch, key components (case, band, bezel) include bio-based resin, making it more sustainable while retaining durability. It should look, feel, and perform similarly to regular resin in many respects, though maybe slightly different in texture or finish depending on manufacturing. 

6.      What battery does it use and how long does it last?
It uses a CR2016 battery. Casio states approximately 5 years of battery life under normal use. 

7.      What is the “SINCE 1995” feature?
It’s a special imprint or message that appears on the LCD when the backlight is activated. It’s intended to celebrate the anniversary, marking 1995 as the birth year of the 6900 line.

8.      What are the watch’s stopwatch functions?
The watch features a 1/100-second stopwatch. For the first 60 minutes, measurement is to 1/100 second; after that, it switches to 1-second increments up to 23:59:59. Stopwatch modes include elapsed time, split time, and first-to-second place times. 

9.      What about the timer?
It has a countdown timer with a maximum range of 24 hours. You can set it starting from 1 second up to 24 hours, in increments of seconds, minutes, or hours depending on need. There is also an auto-repeat feature, meaning once the timer ends it can restart automatically if configured. 

10.   How bright / usable is the backlight?
The watch uses a LED backlight (the “Super Illuminator” type) with afterglow. The brightness is sufficient for low-light conditions. The design includes that “SINCE 1995” message when you light it up, which is a decorative plus. For very dark environments, it should be readable, though as with all digital watches, extreme darkness or obstructions may limit visibility.

11.   How accurate is the timekeeping?
The accuracy is ±15 seconds per month under normal conditions, which is typical for Casio digital watches with quartz modules. 

12.   Is the watch comfortable to wear? What wrist sizes does it fit?
The compatible band length is from about 145 mm to 205 mm wrist circumference. Its weight is 67 g, which is a bit heavier than very slim watches but typical for G-Shocks. The case is large (over 50 mm in width), so on smaller wrists it will have a more prominent look. 

13.   Can I change the band?
Yes, in general you can replace the band, since it uses standard resin band attachments. However, because it's a special edition, finding matching bio-based resin replacement bands in the exact color may be harder. Casio service centres or authorised G-Shock band suppliers are the safest route.

14.   Is the packaging special?
Yes. The watch comes in special packaging inspired by the original DW-6900H color-pack designs. The package features motifs like the “G” symbol and uses color schemes from the anniversary line. 

15.   Will this color fade or yellow over time?
Resin (even bio-based resin) can discolor or degrade over long periods with exposure to sunlight (UV), sweat, chemicals, etc. But good care (avoiding prolonged UV exposure when not needed, cleaning after sweat, storing properly) helps. Casio uses durable resin and the yellow used here is meant to be bold, so with normal wear it should hold up well.

About Casio

Casio is a world-renowned Japanese electronics brand founded in 1946, best known for its innovative and durable timepieces. The company’s G-Shock line, launched in 1983, set a new standard for toughness by combining shock resistance, water resistance, and advanced timekeeping features. Casio continues to be a leader in watchmaking, offering models that blend functionality with cutting-edge design, from everyday wear to professional outdoor use. Their watches are trusted globally for reliability, precision, and style.

Why You Should Buy from H E Phillips Ltd, 19 Fore Street, Totnes, Devon, TQ9 5DA

H E Phillips Ltd is a trusted independent family jeweller located in Totnes, Devon. With decades of experience, they provide authentic branded watches, excellent customer service, and fast, secure UK delivery.

When you shop at H E Phillips Ltd, you get:

• 100% genuine products in official packaging
• Manufacturer’s warranty with proof of purchase
• Personal, family-run service
• Easy returns and exchanges
• Secure UK-wide shipping

FAQs: Shopping with H E Phillips Ltd

1.      Are all your watches genuine?
Yes, every item is 100% authentic and comes with proof of purchase.

2.      Do you offer a warranty?
Yes, all watches include the official manufacturer’s warranty.

3.      Can I return or exchange an item?
Yes, returns are accepted within the policy period if unused and in original condition.

4.      Do you ship across the UK?
Yes, we provide fast and reliable UK-wide delivery.

5.      Can I visit your store?
Yes, visit us at 19 Fore Street, Totnes, Devon, TQ9 5DA.

H E Phillips Ltd Contact Details

Address: 19 Fore Street, Totnes, Devon, TQ9 5DA
Opening Times: Monday to Saturday, 09:00–16:30
Phone: 01803 866018
Email: golduwant@aol.com
Website: https://hephillipsltd.com