Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Titanium Case - Unidirectional Grey Silicon Nitride Ceramic Bezel - Grade 5 Titanium Dial - 215.90.46.51.99.001

Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Titanium Case - Unidirectional Grey Silicon Nitride Ceramic Bezel - Grade 5 Titanium Dial - 215.90.46.51.99.001

Marsoni

M251S

$4707.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Titanium Case - Unidirectional Grey Silicon Nitride Ceramic Bezel - Grade 5 Titanium Dial - 215.90.46.51.99.00145. 5 mm titanium case with anti magnetic properties and helium escape valve, transparent back, screw in crown, unidirectional rotating grey silicon nitride ceramic bezel with orange rubber and Liquidmetal diving scale, scratch resistant sapphire crystal, sand blasted grade 5 titanium dial with Arabic numerals and a date window at the 6 oclock position, small seconds sub dial, as well as 60 minute and 12 hour counters on one dial, caliber Omega 9900

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I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.

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Reviewed in the United States on December 26, 2025