The Speedmaster, an enduring classic, currently features a 40mm case and an automatic chronograph with date (caliber 1164 based on Valjoux 7750). Reference 323.21.40.40.01.001 has a stainless steel case and bracelet, while the bezel, pushers, and crown are in red gold.
Shape
Round
Glass
Sapphire
Diameter
40.00 mm
Water Resistance
100.00 m
Dial Color
Black
Material
Black
Buckle
Bracelet