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Casio W-400 Marlin watch Japan 1983
£190.00 GBP
Good condition for its age
Has ware marks but still look great when worn
Not many of these left in the world
New battery, service and guarantee
The Casio W-400 Marlin is a highly collectible, vintage digital tool watch released by Casio in 1983.
Celebrated as a foundational "pre-G-Shock" model, it is prized by enthusiasts for its rugged construction, compact dimensions, and distinct functional traits.
Key Specifications & Architecture
- Module: It runs on the legendary Module 106 (originally taken from the H-101), which is famous among purists for its remarkably crisp, loud audio chimes.
- Case Construction: It features an octagonal black resin/plastic case. Uniquely, its heavy-duty stainless steel screw-on case back threads directly into the resin core to secure its water resistance.
- Dimensions: A comfortable, vintage profile featuring a 37.4mm case width, 46.9mm lug-to-lug, 10mm case depth, and an 18mm lug width. It weighs a mere 36g.
- Water Resistance: True to the "Marlin" designation, it is rated for 100 metres (10 ATM), making it a pioneer for early multi-sport water resistance.
- Power: Powered by a large CR2320 battery.
Core Features & Quirks
The watch includes standard digital staples alongside unique layout choices:
- Timekeeping & Display: Displays time, day, and date with an old-school, pool-lamp style microlight.
- Audio Alerts: It includes a daily alarm and dual hourly and half-hourly chimes—a feature Casio entirely phased out in later eras.
- Timer Modding: Includes a 1/100-second stopwatch and a 24-hour countdown timer. Collectors note that you can synchronise the alarm and the countdown timer together to generate a highly unique alert sound