Seamaster Planet Ocean 600M Co-Axial Worldtimer 45.5 Master Chronometer GMT Ceramic / Black - Grey / Rubber

In Context

At 45.5 mm it is a large watch — well above this catalogue’s 40 mm median, and enough to dominate a narrow wrist. At 17.38 mm it is very tall, and sits high off the 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. 600 m is a professional diving rating, far past any demand a wrist is likely to make of it.

The movement winds itself from the motion of your wrist. 60 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 25,200 vph the seconds hand advances 7 times a second.

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

Self-winding movement with Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. GMT / Worldtimer functions. Free sprung-balance with silicon balance spring; automatic winding in both directions. Rhodium plated finish with Geneva waves in arabesque.

7 other watches in the library run the Omega 8938.

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220.12.43.22.03.002 · 43 mm