Bremont Supermarine 300MvsCronos PT5000 Sub Diver Watch L6005


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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

PT5000 Sub Diver Watch L6005
Diameter
40mm
40mm
Thickness
12mm
lowest
13.5mm
Water Resistance
300m
highest
200m
MSRP
$3,550
$239
lowest
Movement
Bremont BE-92AE
PT5000
Case
4 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 Cronos PT5000 Sub Diver Watch L6005 for its excellent value, with many citing the PT5000 movement's reliable performance and buttery winding action as key strengths. The 40mm case is noted for comfortable wearability, and the watch is considered a strong homage. Accuracy figures for the PT5000 movement vary among owners, ranging from +2 seconds per day to +15 seconds per day, with one owner reporting 45 seconds per day. One owner noted a case protrusion issue at the 2 and 4 o'clock positions on a blue L6005 with a date function, and another experienced recurring crown issues but received excellent warranty service. Overall, owners rate the Cronos PT5000 Sub Diver Watch L6005 highly for its exceptional value and enjoyable user experience, particularly the winding feel.
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