Side by side

Bremont Supermarine 300MvsOak & Oscar The Humboldt GMT SAR Edition

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
The Humboldt GMT SAR Edition
Oak & OscarThe Humboldt GMT SAR Edition
MSRP $2,950

At a glance

15 of 29 specs differ
Diameter
Supermarine 300M40mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
Supermarine 300M40h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
Supermarine 300M300m
The Humboldt GMT SAR Edition200m
MSRP
Supermarine 300M$3,550
The Humboldt GMT SAR Edition$2,950

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
39.5mm
Thickness
12mm
12.5mm
Lug-to-Lug
46.8mm
Material
904L Stainless Steel
Grade 5 Titanium
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Green
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
BE-92AE
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh

Pricing

1 specs
MSRP
$3,550
$2,950

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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.

Oak & Oscar The Humboldt GMT SAR Edition

Oak & Oscar The Humboldt GMT SAR Edition is praised for its anti-magnetic properties, sandwich lume dial, and overall construction quality for its price point. It features a brushed Grade 5 titanium case, a navy blue sandwich dial with an orange minute track and seconds hand, and a Sellita SW330 movement with a 56-hour power reserve. Minor drawbacks noted include bracelet sizing adjustment and lume brightness. On balance, owners and reviewers rate Oak & Oscar The Humboldt GMT SAR Edition highly for its robust construction and unique dial design at its price point.

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