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Rare Vintage Casio Marlin MD-733 Triple Calendar Moon Phase Sports Watch JDM 80s
■ 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 rare vintage Casio Marlin MD-733 men’s Triple Calendar Moon Phase sports watch, powered by module 716 and produced for the Japan Domestic Market (JDM) during the 1980s. This highly collectible Marlin series model combines rugged sports watch styling with sophisticated calendar and moon phase functionality, showcasing Casio’s ability to blend practical features with distinctive design during the golden era of Japanese watchmaking.
The watch is in full working condition, and all features and functions of the watch are working properly, including timekeeping, day display, date display, month display, and moon phase functions.
All parts of the watch are original with the exception of the strap, which has been replaced with an aftermarket strap suitable for everyday wear.
The watch is in good physical condition with signs of use and age consistent with a vintage timepiece. Photos best describe its physical condition and should be reviewed carefully by interested buyers.
Key Details:
• Brand: Casio
• Model: Marlin MD-733 Triple Calendar Moon Phase
• Module: 716
• Era: 1980s
• Origin: Japan Domestic Market (JDM)
• Movement: Quartz
• Features: Moon phase, day display, date display, month display, triple calendar, timekeeping
• Strap: Aftermarket strap
• Condition: Full working condition with all features and functions operating properly
• Originality: All parts original except strap
• Physical Condition: Good physical condition with signs of use and age present
A highly collectible vintage Casio Marlin model that combines classic sports watch styling with advanced calendar functionality, making it one of the more distinctive and desirable moon phase watches from Casio’s 1980s lineup.
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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