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Rare Vintage Casio DEP-600 Men’s Twin Sensor Digital Diver’s Sport Watch JDM 90s
■ ONE OF A KIND — THIS IS THE ONLY ONE. ONCE IT SELLS, THIS PAGE BECOMES AN ARCHIVE.
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► SELLER'S DESCRIPTION
Up for sale is a vintage Casio DEP-600 Twin Sensor digital diver’s wristwatch, a Japan Domestic Market (JDM) release from the 1990s. Designed for professional use, this iconic model features both a depth gauge and thermometer sensor, making it one of Casio’s most advanced and collectible dive watches of its era. With rugged styling, gold-tone accents, and serious functionality, the DEP-600 remains a standout among vintage Casio tool watches.
The watch is in full working condition, with all features and functions operating properly, including timekeeping, sensor readings, and mode functions.
All parts of the watch are original, including the stainless steel case, bezel, buttons, sensor modules, and the original black resin dive strap. The watch head itself is in good physical condition, showing signs of use and age consistent with a 1990s vintage timepiece. The strap shows more signs of use and age than the watch head and has a small engraved “M” on the front of the band. Please review the photos carefully, as they best describe the watch’s physical condition.
Key Details:
• Brand: Casio
• Model: DEP-600
• Module: 970
• Functions: Depth Gauge, Thermometer, Time, Log Memory, Dive Profile Recording
• Strap: Original Casio black resin diver strap with “M” engraving
• Case: Stainless steel with gold-tone accents
• Origin: Japan Domestic Market (JDM)
• Era: 1990s
• Condition: Full working order; good physical condition with signs of use and age; strap shows heavier wear than watch head
A rare opportunity to own one of Casio’s legendary Twin Sensor dive watches in fully functional condition and increasingly difficult to find.
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)
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