Introduced in 1999, this Speedmaster has a steel case akin to the X-33. Ref. 3840.50.31 features a carbon-like dial. Although designated 'Special Series,' it wasn't strictly limited.
Movement Type
Manual
Caliber
3600Jewels
64
Reserve
504
Frequency
18000
Hands
No Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Stainless Steel
Glass
Sapphire
Thickness
16.10 mm
Diameter
43.30 mm
Water Resistance
100.00 m
Dial Color
Black
Material
Strap
