Bremont Supermarine 300MvsDuxot Atlantica Diver Automatic


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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.

Supermarine 300M

Atlantica Diver Automatic
Diameter
40mm
42mm
Lug-to-Lug
n/a
50mm
Thickness
12mm
lowest
13mm
Water Resistance
300m
highest
200m
MSRP
$3,550
$280
lowest
Movement
Bremont BE-92AE
Seiko NH35
Case
7 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Bremont Supermarine 300M is praised for its comfortable 40mm case, which some owners find wears well even on smaller wrists due to its lug design, outperforming some 40mm watches. One forum contributor notes the 40mm case is relatively compact for a 300m diver and is priced at $1375. A reviewer found the 40mm case comfortable. On balance, owners and reviewers appreciate the Bremont Supermarine 300M's wearable 40mm case size and comfortable wearability.
Owners widely praise the Duxot Atlantica Diver Automatic as a beautiful and happy purchase, with many finding it a useful daily wearer. Reviewers and owners consistently note well-aligned bezel markings and adequate lume, along with a Seiko NH35 automatic movement. However, the bezel is described as stiff to rotate, and the stamped bracelet with pin links is frequently flagged as jangly, flimsy, and uncomfortable. Accuracy varies, with one owner reporting a loss of about 12 seconds per day. On balance, owners and reviewers rate the Duxot Atlantica Diver Automatic highly for its value and aesthetic appeal, despite noted comfort issues with the bracelet.
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