Certina DS-1 Chrono AutovsOmega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm


Ref. 304.63.44.52.01.001·MSRP $42,400
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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.

DS-1 Chrono Auto

Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm
Diameter
42mm
44.3mm
Lug-to-Lug
49.7mm
lowest
50mm
Thickness
14.3mm
lowest
16.9mm
Water Resistance
100m
100m
Power Reserve
n/a
60h
MSRP
$2,164
lowest
$42,400
Movement
Tissot Valjoux A05.231
Omega 9904
Case
5 specsCrystal & Dial
2 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Certina DS-1 Chrono Auto for its elegant design, value, and 100m water resistance. Reviewers highlight its handsome, sober tool-like demeanor and good build quality from Swatch Group. One owner notes the watch is a dressier option than a dive watch, appreciating its Super-LumiNova and AR sapphire crystal. The 42mm case is described as not feeling too large due to a relatively thin profile. Some owners report the included leather strap can be uncomfortable and the clasp sharp. One reviewer noted the date window on a similar model appeared disproportionate and the crystal attracted glare due to a lack of AR coating, though other sources mention AR sapphire crystal. Accuracy figures vary, with one owner seeing +4s/day and another noting the Valjoux A05.231 movement. Overall, owners and reviewers rate the Certina DS-1 Chrono Auto highly for its handsome design and strong value proposition.
The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm is widely praised for its detailed and photorealistic moonphase complication, featuring a boot print Easter egg, and its exceptional finishing, including a ceramic bezel and sun-brushed dial. Owners and reviewers consistently highlight the beauty of the complication and the overall build quality. However, the watch's 44.25mm case size and considerable thickness (around 16.85mm to 17mm) are frequently noted as making it wear large and potentially challenging to fit under dress cuffs, with some suggesting it feels "chunky" or like a "beast." One reviewer found the crown guards sharp when winding and the crown difficult to pull out. On balance, owners and reviewers appreciate the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm for its stunning moonphase detail and high-end finishing, despite its substantial size.
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