Speedmaster Broad Arrow Co-Axial Rattrapante Stainless Steel / Inverted Panda

In Context

At 44.25 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 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.

3882.51.37 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.

The 3612 is Omega's split-seconds chronograph, in the De Ville Chronoscope and the Speedmaster Broad Arrow. It is the Piguet-based column-wheel movement with the co-axial escapement and a rattrapante mechanism. It powers 17 watches in this library. A second chronograph seconds hand runs under the first, stops on a press to read an intermediate time and catches up on the next; the glossary defines the [rattrapante](/glossary/rattrapante). The base is the 1285 family the [Piguet piece](/blog/the-frederic-piguet-1185-the-thin-chronograph-under-three-maisons) describes, with 33 jewels, a 55-hour reserve and a beat of 28,800 vph at 27 mm across, and it is a COSC chronometer. In the library it powers 12 [De Ville](/brands/omega/de-ville) Chronoscope Rattrapante references at 41 mm and 44 mm, 4 [Speedmaster Broad Arrow](/brands/omega/speedmaster-broad-arrow) Rattrapantes at 44.25 mm and one Speedmaster. 2 are limited editions. The [3313](/calibers/omega-3313) is the same movement without the split-seconds, and the [3603](/calibers/omega-3603) the GMT version.

16 other watches in the library run the Omega 3612.

Omega

De Ville Co-Axial 41 Chronoscope Rattrapante Red Gold / Black

4648.50.31 · 41 mm

Omega

De Ville Co-Axial 41 Chronoscope Rattrapante Platinum / Grey

4647.40.31 · 41 mm

Omega

De Ville Co-Axial 41 Chronoscope Rattrapante Platinum Baguette / MOP

4642.72.31 · 41 mm

Omega

De Ville Co-Axial 44 Chronoscope Rattrapante II Red Gold / Silver

422.53.44.51.02.002 · 44 mm