Up for sale is a rare vintage Casio B817 Quartz men’s digital sports watch from the 1980s, produced for the Japan Domestic Market (JDM) and powered by Module 155. This early Casio model features a clean, minimalist digital display with day and date indicators — a design that captures the essence of Casio’s pioneering era in digital watchmaking.

The watch is in full working condition, and all features and functions operate properly. It is currently fitted with an aftermarket strap, while all other parts of the watch remain original.

Physically, the watch is in very good condition, showing only minor signs of use and age. The stainless steel case, bezel, and display all present well, with the photos best describing its physical condition.

Key Details:

• Brand: Casio

• Model: B817 Quartz

• Module: 155

• Era: 1980s

• Market: Japan Domestic Market (JDM)

• Display: Digital LCD

• Features: Time, Day, Date Display

• Case Material: Stainless Steel

• Strap: Aftermarket replacement strap

• Condition: Full working condition; very good physical condition with minor signs of age — see photos

• Originality: All parts original except for strap

A rare and collectible early Casio digital watch, the B817 showcases the brand’s precision quartz engineering and timeless vintage aesthetic. A great addition for collectors of JDM or early Casio timepieces.

Ships carefully.

Feel free to message me with any questions.