Introduced in 2025, this platinum interpretation of the Speedmaster Calibre 321 uses a 42mm case of proprietary Pt950Au20 alloy with a black ceramic bezel featuring white enamel tachymeter markings. Its onyx dial has three subdials made from lunar meteorite, and markers plus hands are 18K white gold. The hand-wound calibre 321, with column-wheel architecture and about 55 hours of power reserve, is visible through a sapphire caseback, and the bracelet features a vintage logo clasp.
Shape
Round
Lug Distance
20.00 mm
Glass
Sapphire
Thickness
Dial Color
Black
Material
Bracelet
13.39 mm
Diameter
42.00 mm
Water Resistance
50.00 m
