Side by side

Bremont Supermarine 300MvsRolex Sea-Dweller

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

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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.

Rolex Sea-Dweller

Owners widely praise the Rolex Sea-Dweller's matte dial with red lettering, with some calling it the best dial on a modern Rolex. The watch is noted for its substantial presence, with some owners appreciating its "chunkiness" and "clean look," while others find it wears smaller than its 43mm size suggests. The Sea-Dweller is considered by some to be a superior, more masculine dive watch than alternatives. However, the watch's thickness and 215-gram weight are frequently cited as potential drawbacks, making it best suited for larger wrists. Some owners find the cyclops on newer models detracts from the watch's aesthetic, with one reviewer calling it "goofy." The Sea-Dweller is also considered less versatile and popular than other models due to its size and thickness. Overall, owners rate the Rolex Sea-Dweller highly for its distinct dial and substantial presence, though its size and thickness make it a niche choice for those with larger wrists.

At a glance

18 of 29 specs differ
Diameter
Supermarine 300M40mm
Sea-Dweller43mm
Power Reserve
Supermarine 300M
Sea-Dweller70h
Water Resistance
Supermarine 300M300m
Sea-Dweller1,220m
MSRP
Supermarine 300M$3,550
Sea-Dweller$14,550

Full specifications

Case

6 specs
Diameter
40mm
43mm
Thickness
12mm
Lug Width
20mm
Material
904L Stainless Steel
Oystersteel
Water Resistance
300m
1220m
Caseback
Monobloc middle case, screw-down case back and winding crown

Crystal & Dial

4 specs
Crystal Shape
Flat
Dial Color
Green
Black
Indices
Index
Lume
None
Chromalight

Movement

7 specs
Caliber
Bremont BE-92AE
3235
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
70h
Jewels
0
31
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Date

Pricing

1 specs
MSRP
$3,550
$14,550
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