Bremont Supermarine 300MvsRatio FreeDiver Professional RTF


Ref. ratio-freediver-professional-sapphire-blue-sunray-dial-automatic-rtf0013-500m-mens-watch·MSRP $140
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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

FreeDiver Professional RTF
Diameter
40mm
42mm
Thickness
12mm
lowest
15.5mm
Water Resistance
300m
500m
highest
MSRP
$3,550
$140
lowest
Movement
Bremont BE-92AE
Miyota 8215
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 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 Ratio FreeDiver Professional Sapphire RTF for its exceptional value for money. The watch is noted for its quality construction, with bezels described as having a great feel and minimal back play. One owner highlights an Abyss black dial, sapphire crystal with AR coating, and screw-down crown, built for daily wear with 200m water resistance. On balance, the consensus is that the Ratio FreeDiver Professional Sapphire RTF is a highly recommended watch due to its impressive quality and great price point.
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