Side by side

Bremont Supermarine 300MvsRolex Air-King

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

Air-King
RolexAir-King
MSRP $8,150
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 Air-King

Rolex Air-King owners are divided on its busy dial, with some finding it initially confusing but ultimately familiar and appreciating its unique green and yellow accents, while others criticize it for being too busy with too many numbers and colors. The watch is praised for its comfortable wear, good proportions, and versatility, bridging formal and sporty occasions, with some owners preferring it over other Rolex models. It is noted as accurate, running within +/- 2 seconds per day, and has a 70-hour power reserve, with a 12mm thickness that allows it to slide easily under a cuff. Some owners consider the Air-King an underrated daily wear and a fun conversation piece, though it is also seen as pricier than some alternatives and potentially a "spare parts" watch or a model people settle for. Overall, owners rate the Rolex Air-King highly for its distinctive and playful design, despite the polarizing dial.

From video reviewers

The Calibre 3230 movement is cited as a key technical detail. The perceived lack of versatility for formal occasions is mentioned as a drawback.

At a glance

17 of 29 specs differ
Diameter
Supermarine 300M40mm
Air-King40mm
Power Reserve
Supermarine 300M
Air-King70h
Water Resistance
Supermarine 300M300m
Air-King100m
MSRP
Supermarine 300M$3,550
Air-King$8,150

Full specifications

Case

6 specs
Category
Diver
Pilot
Thickness
12mm
Lug Width
20mm
Material
904L Stainless Steel
Oystersteel
Water Resistance
300m
100m
Caseback
Monobloc middle case, screw-down case back and winding crown

Crystal & Dial

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

Movement

6 specs
Caliber
BE-92AE
3230
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
70h
Jewels
0
31
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$3,550
$8,150
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