Reference 2539.80.00, an Omega Seamaster 300M GMT limited to 500 pieces, was made for the Special Boat Service (SBS). Based on the 2535.80.00, it differs with a special caseback.
Movement Type
Automatic
Caliber
2628Jewels
27
Reserve
48
Frequency
25200
Hands
Center Seconds
Shape
Round
Material
Stainless Steel
Glass
Sapphire
Diameter
41.00 mm
Water Resistance
300.00 m
Dial Color
Blue
Material
Bracelet
Buckle
SBS
