Bremont Supermarine 300MvsCWC RN81 Clearance Diver Automatic

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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.

Bremont Supermarine 300M at true scale

Supermarine 300M

CWC RN81 Clearance Diver Automatic at true scale

RN81 Clearance Diver Automatic

Diameter

40mm

41mm

Lug-to-Lug

n/a

47mm

Thickness

12mm

lowest

12.7mm

Water Resistance

300m

300m

MSRP

$3,550

$1,875

lowest

Movement

Bremont BE-92AE

Sellita SW200-1

Case

4 specs
Diameter
40mm
41mm
Thickness
12mm
12.7mm
Lug-to-Lug
n/a
47mm
Material
904L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Dial Color
Green
CWC RN81 Clearance Diver Automatic Watch
Lume
None
Super-LumiNova

Movement

1 specs
Caliber
Bremont BE-92AE
Sellita SW200-1

Pricing

1 specs
MSRP
$3,550
$1,875
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Bremont Supermarine 300M

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.

CWC RN81 Clearance Diver Automatic

Owners widely praise the CWC RN81 Clearance Diver Automatic Watch for its build quality and comfortable wear, with some appreciating the fixed springbars and historical significance as a tool watch. However, reviewers and owners note the "faux patina" lume color is considered too gold and glossy, and some find the polished case and dial text/logo less appealing. The CWC RN81 Clearance Diver Automatic Watch is also seen as overpriced by some, with concerns raised about the acrylic bezel's durability and import taxes for US buyers. On balance, owners and reviewers value the CWC RN81 Clearance Diver Automatic Watch for its faithful reissue design and historical connection, though price and specific aesthetic choices are points of contention.