Maker: Corum
Serial number: 349277
Year: Circa 1990s
Case size: Approx. 34 mm
Case material: 18K yellow gold
Bezel: 18K yellow gold
Dial: Yellow gold U.S. Twenty Dollar Coin
Movement: Quartz
Bracelet/Strap: Burgundy lizard and gold plated Corum buckle
Stamps: Case: 750 (Swiss hallmark). Case back: MODELE DEPOSE (Swiss hallmarks) 750 122 349277 CORUM (Corum maker's mark) SWISS MADE. Movement: CORUM 200460 SIX JEWELS SWISS. Buckle: SWISS PLAQUE G 49277 (partially obscured).
Gross weight: 28.35 dwt.

The Corum Coin Watch is a hallmark of high horology and numismatics, originally introduced in 1964. These timepieces are crafted by hollowing out an authentic gold coin to house an ultra-thin movement. The watch typically features an 18K yellow gold case with the gold coin serving as the dial and case back.