Side by side

Bremont Supermarine 300MvsRolex Rolex Deepsea

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

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 Deepsea

Owners widely report the Rolex Deepsea is a substantial, well-built watch with impressive engineering, praised for its robust compression architecture and the caliber 3235 movement's stringent accuracy certification. Some owners find the Rolex Deepsea exceptionally comfortable on a Rubber B strap, while others note it is thick and heavy but well-balanced by its bracelet. The watch's large size is polarizing, with some finding it niche and potentially too large for smaller wrists, while others appreciate its unique design elements and consider it Rolex's most serious workhorse. On balance, owners and reviewers rate the Rolex Deepsea highly for its impressive engineering and robust build, despite its polarizing size.

At a glance

18 of 29 specs differ
Diameter
Supermarine 300M40mm
Rolex Deepsea44mm
Power Reserve
Supermarine 300M
Rolex Deepsea70h
Water Resistance
Supermarine 300M300m
Rolex Deepsea3,900m
MSRP
Supermarine 300M$3,550
Rolex Deepsea$15,550

Full specifications

Case

6 specs
Diameter
40mm
44mm
Thickness
12mm
5.5mm
Lug Width
20mm
Material
904L Stainless Steel
Oystersteel
Water Resistance
300m
3900m
Caseback
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve

Crystal & Dial

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

Movement

7 specs
Caliber
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
$15,550
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