Omega
Seamaster 300 GMT 50th Anniversary · Ref. 2534.50.00
Automatic Cal. 1128 · GMT · 41 mm · 300 m Water Resistant · 1998

Released in 1998 to celebrate the 50th anniversary of the Omega Seamaster line, the Seamaster 300 GMT (Ref. 2534.50.00) was Omega's first dedicated GMT travel watch, featuring the COSC-certified Caliber 1128 automatic movement with a 44-hour power reserve and a bi-directional 24-hour rotating bezel. The caseback bears a special '50th Anniversary' engraving, making this a historically significant and increasingly collectible piece. This example received a full overhaul in April 2026 and has been timegrapher-tested at +1 sec/day.

Specifications
BrandOmega
ModelSeamaster 300 GMT 50th Anniversary
Reference2534.50.00
MovementAutomatic, Caliber 1128, COSC Chronometer
Case Size41 mm
Case MaterialStainless Steel
Dial ColorBlack
CrystalSapphire
Water Resistance300 m (30 bar / 1000 ft)
Band MaterialStainless Steel
Condition
Authenticity

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