CORUM BUBBLE GMT Reference: 383.150.20. Serial number: 738163. Steel case. Steel bezel graduated over 24 hours. Sky-blue dial featuring a world map, second time zone indicator, date window at 6 o’clock. Functioning mechanical self-winding movement. Leather strap with signed folding clasp. Sapphire crystal. Circa 2000. Diameter: 42 mm. Supplied with its original case. A stainless steel wristwatch with an automatic movement, by Corum. Circa 2000. RC: Sold as is, with signs of wear and use. Movement in working order at the time of writing; a routine service is recommended; no warranty.