Omega Seamaster Diver 300M Co Axial Master Chronometer 42mmvsSquale Master

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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.

Seamaster Diver 300M Co Axial Master Chronometer 42mm

Master
Diameter
42mm
42mm
Lug-to-Lug
49.9mm
n/a
Thickness
13.6mm
lowest
15.5mm
Water Resistance
300m
1200m
highest
Power Reserve
55h
highest
38h
MSRP
$16,600
$2,785
lowest
Movement
Omega 8800
Sellita SW200-1
Case
5 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Omega Seamaster Diver 300M Co Axial Master Chronometer 42mm for its impressive detail, versatile design that bridges toolish and elegant, and satisfying bezel action. Reviewers highlight its wearability, with the 42mm case and 13.7mm thickness considered just right, and note the white ceramic dial with red accents pops. Owners also commend its case finishing and legible dial with bold indices, with one owner considering it a timepiece that can be passed down. The Omega 8800 movement is recognized for its precision and magnetic resistance, offering a 55-hour power reserve. Some owners find the black dial lacks shine indoors and wish for brighter hour markers, while one reviewer notes the ceramic case is prone to shattering and the exhibition case back has sharp edges. The mesh bracelet's clasp is criticized by one reviewer for being bulky, and another points out thickness around the clasp as a drawback.
Owners widely praise the Squale Master's outstanding quality and value, with one owner considering it the best dive watch at its price point. Reviewers and owners alike highlight the vintage dial and orange minute hand for excellent legibility, and the high-quality mesh bracelet is also a noted strength. A reviewer points out the Sellita SW 200-1 elaboré movement has an accuracy of ±7 to ±20 seconds per day, and the 17mm thickness and substantial 42mm size are noted as significant, though the reviewer found the stealthy, dressed-down design grew on them. On balance, owners and reviewers rate the Squale Master highly for its exceptional build quality and legibility at its price point.
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