◄ RETURN TO CATALOGCART
1 / 7

Rare Vintage Casio B817 Men’s Digital Sports Watch Module 155 JDM 1980s

DIRECT PRICE — SAVE 10%
EBAY PRICE$75.00
DIRECT -10%$67.50
■ ONE OF A KIND — THIS IS THE ONLY ONE. ONCE IT SELLS, THIS PAGE BECOMES AN ARCHIVE.
► BUY DIRECT & SAVE 10% — SAME WATCH, NO MARKETPLACE FEES
► OR BUY ON EBAY AT FULL PRICE ($75.00)
BRAND:
Casio
UNIT CONDITION:
Pre-owned - Good
► SELLER'S DESCRIPTION
Up for sale is a rare vintage Casio B817 men’s digital sports watch from the 1980s, powered by Module 155. This Japan Domestic Market (JDM) model represents one of Casio’s early lithium-powered digital designs and showcases the clean, rectangular styling that defined the brand’s classic era. The watch is in full working condition, and all features and functions operate properly. All parts of the watch are original, including its stainless steel Casio bracelet, preserving the watch’s authentic vintage form. The watch shows signs of use and age, consistent with its vintage nature, but it remains in overall good physical condition. The photos best describe its physical condition and should be reviewed carefully by interested buyers. Key Details: • Brand: Casio • Model: B817 • Module: 155 • Era: 1980s • Market: Japan Domestic Market (JDM) • Display: Digital Quartz • Strap: Original stainless steel Casio bracelet • Condition: Full working condition; all features operating properly • Physical Condition: Signs of use and age – see photos A great example of Casio’s early digital craftsmanship — highly collectible, stylish, and timeless in its design. Ships carefully. Feel free to message me with any questions.

► ARCHIVE FILE: CASIO — BRAND HISTORY

Casio began not with watches but with calculation. Tadao Kashio founded Kashio Seisakujo in Tokyo in 1946, and with his three brothers developed the 14-A in 1957, the world's first compact all-electric relay calculator, incorporating the business as Casio Computer Co. that same year. The move into watchmaking came in November 1974 with the Casiotron, a digital watch whose claim to fame was an automatic calendar that knew how many days each month had, a small feat of logic that announced how an electronics firm would approach timekeeping.

Read the full Casio story — and shop all Casio watches ►

► RELATED TIMEPIECES DETECTED (4)

RECOMMENDATIONS BASED ON BRAND AND MOVEMENT ANALYSIS