The Omega Speedmaster Date 3811.50.01 sports a 39.00mm stainless steel case and a black dial, powered by caliber 1152.
Movement Type
Automatic Chronograph
Caliber
1152Jewels
25
Reserve
46
Frequency
28800
Hands
Small Seconds
Shape
Round
Lug Distance
18.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
13.65 mm
Diameter
39.00 mm
Water Resistance
30.00 m
Dial Color
Black