Glycine Airman SST GMT GL0310vsOmega Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm


Ref. 217.32.42.21.01.001·MSRP $8,600
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Airman SST GMT GL0310

Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm
Diameter
43mm
42mm
Lug-to-Lug
n/a
47.5mm
Thickness
n/a
13.8mm
Water Resistance
200m
600m
highest
Power Reserve
n/a
60h
MSRP
$3,400
lowest
$8,600
Movement
Sellita SW330-2
Omega 8912
Case
6 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Glycine Men's Airman SST GMT 43mm Automatic Watch GL0310 is widely considered an exceptional value for a Swiss automatic GMT watch, offering a complete package that exceeds expectations. The dial's two black shades visually represent AM and PM, with the hour hand at 6 o'clock indicating noon. On balance, owners rate the Glycine Men's Airman SST GMT 43mm Automatic Watch GL0310 highly for its impressive value proposition in the Swiss automatic GMT market.
Owners praise the Omega Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm for its robust, over-engineered case, functional dial with exceptional lume, and luxurious feel, with some finding the 42mm size perfect for larger wrists. Reviewers note a slimmer 13.8mm thickness and a more modern, angular design with a matte black dial and open-work numerals, powered by the automatic Omega 8912 movement. However, some owners and reviewers find the watch "chunky" or bulky, with proportions that resemble Seiko more than Omega, and a thickness of approximately 15.7mm is noted as a drawback by one owner. The omission of the helium escape valve is also mentioned by reviewers. On balance, owners and reviewers rate the Omega Seamaster Planet Ocean 600M Co Axial Master Chronometer 42mm highly for its robust build and updated, slimmer design at 42mm.
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