Bremont S302vsYema Navygraf Marine Nationale CMM.10
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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.

S302

Navygraf Marine Nationale CMM.10
Diameter
40mm
39mm
Lug-to-Lug
n/a
46mm
Thickness
13mm
11mm
lowest
Water Resistance
300m
highest
100m
MSRP
$3,900
$1,614
lowest
Movement
Bremont BE-92AE
Yema CMM.10
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Bremont S302 is widely praised for its balanced 40mm proportions and legible matte dial, featuring attractive tan accents. Reviewers note its satisfying bezel action and comfortable lug design, with one owner highlighting its scratch-resistant case as a true tool watch feature. However, some find the GMT bezel's integration a compromise and note potential alignment issues with the GMT hand and bezel that may require service. The watch is priced at £3,700 / over $4,000, with some considering its ETA movement high for the cost compared to competitors. On balance, owners and reviewers appreciate the Bremont S302 for its handsome, functional dive GMT design and wearability, despite some reservations about its GMT functionality and value proposition.
The Bremont S302 features 300m water resistance and a GMT complication. Reviewers noted potential quality control and design issues, along with bracelet problems.
The Yema Navygraf Marine Nationale CMM.10 is lauded for its vibrant blue dial and bezel, a clean and legible display, and its in-house CMM.10 automatic movement. Reviewers highlight the 70-hour power reserve and a price point under $2,000 as significant strengths. However, the steel bracelet's clasp is consistently noted as rattly and difficult to open, with one review describing it as feeling slightly cheap. The watch features a 39mm case with a blue sapphire bezel insert and a matte navy dial. Overall, reviewers praise the Yema Navygraf Marine Nationale CMM.10 for its attractive design and strong value proposition, despite minor criticisms of the bracelet clasp.
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