Bremont Supermarine 300MvsLa Touraine Seafarer
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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
Seafarer
Diameter
40mm
43mm
Lug-to-Lug
n/a
48mm
Thickness
12mm
11.4mm
lowest
Water Resistance
300m
highest
200m
MSRP
$3,550
$550
lowest
Movement
Bremont BE-92AE
Miyota 9015
Case
6 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 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.
The slim profile is a key strength, enabled by the Miyota 9015 movement. Reviewers noted the excellent bezel action. Water resistance, while good at 20 ATM, was considered less than typical for dive watches.
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