Speedmaster Broad Arrow Yellow Gold / Enamel

In Context

At 42 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. The case back is open, so the movement is visible without taking the watch apart, 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. 55 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.

3656.20.31 stands on its own in this catalogue — no other reference here shares its base number. It pairs a white dial with a yellow gold case. It was a limited edition. Introduced in 2002. Beyond the time it carries a chronograph.

More elaborately finished version of caliber 3303; used in Speedmaster Enamel Limited Series introduced in 2002. It has a meticulous finish with Geneva wave decor, circular graining, rhodium-plated surfaces, gold-plated engraving, blued-steel screws and a polished bevelled chronograph module with smoothed upper surfaces. The movement has a platinum rotor with an 18-carat gold Speedmaster medallion that matches the colour of the watch case.

2 other watches in the library run the Omega 3320.

Omega

Speedmaster Broad Arrow White Gold / Enamel

3657.20.31 · 42 mm

Omega

Speedmaster Broad Arrow Red Gold / Enamel

3654.20.31 · 42 mm