Side by side

Bremont Supermarine 300MvsDOXA SUB 300

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
SUB 300
DOXASUB 300
MSRP $2,890

At a glance

10 of 29 specs differ
Diameter
Supermarine 300M40mm
SUB 30042.5mm
Power Reserve
Supermarine 300M40h
SUB 30038h
Water Resistance
Supermarine 300M300m
SUB 300300m
MSRP
Supermarine 300M$3,550
SUB 300$2,890

Full specifications

Case

3 specs
Diameter
40mm
42.5mm
Lug-to-Lug
46mm
Material
904L Stainless Steel
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Green
Aquamarine
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
BE-92AE
COSC Chronometer
Power Reserve
40h
38h

Pricing

1 specs
MSRP
$3,550
$2,890

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What people say

Owners + reviewers, side by side

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 and 42mm case sizes, with owners noting the 42mm wears well on smaller wrists due to its lug design. One owner highlights the 13mm thinness of the 40mm case, considered compact for a 300m diver. The watch is priced at $1375. On balance, owners and reviewers appreciate the Bremont Supermarine 300M for its wearability and compact dimensions, especially for a dive watch.

DOXA SUB 300

The DOXA SUB 300 is widely praised for its wearability and vibrant color options, with reviewers noting its compelling charm and modern updates like improved lume and a meter-based bezel. Owners report the DOXA SUB 300 wears comfortably, with its cushion case and beads-of-rice bracelet contributing to a smaller perceived size. The COSC-certified ETA 2824-2 movement is noted for its accuracy, with one owner seeing it gain only +1 second in three days. However, some owners flag issues with the bracelet's end links sticking out and a sharp clasp edge, while one reviewer found the lume to be a disappointment. The polished bezel surface is also noted as prone to scratches. Overall, owners and reviewers rate the DOXA SUB 300 highly for its wearability and distinct design, despite some minor finishing concerns.

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