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Rare Vintage Casio World Time A300U Men’s Digital Watch Module 643 JDM 1980s

DIRECT PRICE — SAVE 10%
EBAY PRICE$185.00
DIRECT -10%$166.50
■ 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 ($185.00)
BRAND:
Casio
UNIT CONDITION:
Pre-owned - Good
► SELLER'S DESCRIPTION
Up for sale is a rare vintage Casio World Time digital watch, model A300U with Module 643, produced for the Japan Domestic Market (JDM) in the 1980s. This early world time model reflects Casio’s innovative design era, combining advanced digital engineering with a timeless stainless steel aesthetic. The watch is in full working condition, and all parts are 100% original, including the signed Casio stainless steel bracelet and clasp. The watch shows noticeable signs of use and age, but remains in good overall condition for its age. The photos best describe its physical condition and should be reviewed carefully by interested buyers. Key Details: • Brand: Casio • Model: A300U • Module: 643 • Movement: Digital Quartz • Bracelet: Original stainless steel Casio bracelet and clasp • Case Material: Stainless Steel • Origin: Japan Domestic Market (JDM) • Era: 1980s • Condition: Full working condition; noticeable signs of use and age; see photos A highly collectible and sought-after vintage Casio from the brand’s golden era of digital innovation. 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 ►

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