Speedmaster Co-Axial Stainless Steel / Black / Bracelet / Olympic Collection

In Context

At 44.2 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 52 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

321.30.44.52.01.001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black dial with a stainless steel case. Beyond the time it carries a chronograph.

Self-winding chronograph movement with Co-Axial Escapement, free sprung balance and a new generation of shock-absorber. Date, day indicator, hour, minute and continuous small seconds hands. Central chronograph hand, 30-minute totalizer, 12-hour totalizer and 7-day totalizer. Day-date change at midnight with instantaneous jump. Luxury finish with Geneva waves. Officially certified chronometer.

7 other watches in the library run the Omega 3888.

Omega

De Ville Co-Axial 41 Chronograph Stainless Steel / White / Olympic Timeless

422.13.41.52.04.001 · 41 mm

Omega

Speedmaster Co-Axial Stainless Steel / Black / Olympic Collection

321.33.44.52.01.001 · 44.2 mm

Omega

Speedmaster Co-Axial Red Gold / Black / Olympic Collection

321.53.44.52.01.001 · 44.2 mm

Omega

Speedmaster Co-Axial Stainless Steel / Black / Bracelet / Olympic Collection

321.30.44.52.01.002 · 44.2 mm