Bremont Supermarine 300MvsLuminox Automatic Sport Timer 42mm


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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

Automatic Sport Timer 42mm
Diameter
40mm
42mm
Thickness
12mm
lowest
13mm
Water Resistance
300m
highest
200m
MSRP
$3,550
$1,825
lowest
Movement
Bremont BE-92AE
Sellita SW220-1
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 Luminox Automatic Sport Timer 42mm is praised for its handsome, durable, and retro design, offering good legibility and comfort, especially with its tritium illumination providing excellent "nightmode" readability. Some owners find the integrated tritium tube on the bezel visually unusual and the Luminox logo applique too reflective. The stainless steel bracelet can make the 42mm case wear larger. One owner views the tritium lume as a disposable feature rather than a long-term cherished element. Overall, owners rate the Luminox Automatic Sport Timer 42mm highly for its durable, retro design and excellent low-light legibility.
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