Bremont Supermarine 300MvsVaer D5 Meridian Auto

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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

D5 Meridian Auto
Diameter
40mm
39mm
Lug-to-Lug
n/a
46mm
Thickness
12mm
lowest
12.5mm
Water Resistance
300m
highest
200m
MSRP
$3,550
$729
lowest
Movement
Bremont BE-92AE
Miyota 9015
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 Vaer D5 Meridian Auto for its classic aesthetic, comfortable 39mm wearability, and well-executed 120-click bezel with minimal back play. Reviewers highlight the anodized aluminum bezel insert, lyre lugs, sword hands, and gold accents on the blue sunburst dial as contributing to its old-school charm. One owner notes the watch keeps good time, running 3-5 seconds fast per month. On balance, owners and reviewers rate the Vaer D5 Meridian Auto highly for its vintage-inspired design and comfortable dimensions at its price point.
The D5 Meridian Auto is praised for its classic 39mm diver proportions and USA assembly. No shared weaknesses were identified.
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