Bremont Supermarine 300MvsRatio FreeDiver Professional 500M


Ref. ratio-free-diver-professional-500m-sapphire-automatic-32bj202a-blk-mens-watch·MSRP $130
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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 500M
Diameter
40mm
42mm
Thickness
12mm
lowest
13mm
Water Resistance
300m
500m
highest
MSRP
$3,550
$130
lowest
Movement
Bremont BE-92AE
Miyota 8215
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.
Owners widely praise the Ratio FreeDiver Professional 500M Automatic 32BJ202A as a high-value dive-style watch, offering quality a step above many microbrands. The watch is noted for its substantial build, with one owner highlighting the robust feel of the screw-down crown. The steel-on-steel aesthetic on the 20mm bracelet is also appreciated, with one owner finding it suitable for smaller wrists. A Miyota 8000 series movement powers the watch, which lacks a hacking feature. Overall, owners rate the Ratio FreeDiver Professional 500M Automatic 32BJ202A highly for its exceptional value and build quality at its price point.
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