BERNY Compressor-style Diver V4 AM181MSvsBremont Supermarine 300M

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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.

Compressor-style Diver V4 AM181MS

Supermarine 300M
Diameter
42mm
40mm
Lug-to-Lug
49mm
n/a
Thickness
14mm
12mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
42h
n/a
MSRP
$156
lowest
$3,550
Movement
Miyota 8215
Bremont BE-92AE
Case
6 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM181MS owners widely praise its solid build, comfortable wear, and excellent lume, with one owner noting the second crown operates the inner bezel. The watch features a compressor-style design, 200m water resistance, and sapphire crystal front and back, and its AR coating is considered superior by one owner. The fit and finish are reported to be on par with higher-end pieces, and many find it a sharp, well-fitting watch that they intend to keep long-term. Overall, owners rate the BERNY BERNY-Men Automatic Compressor-style Diver Watch V4-AM181MS highly for its exceptional value and impressive build quality at its price point.
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.
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