Side by side

Bremont Supermarine 300MvsIslander Islander Republic Traveler GMT Watch with Black Dial #ISL-276

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Islander Republic Traveler GMT Watch with Black Dial #ISL-276
IslanderIslander Republic Traveler GMT Watch with Black Dial #ISL-276
MSRP $695

At a glance

16 of 29 specs differ
Diameter
Supermarine 300M40mm
Islander Republic Traveler GMT Watch with Black Dial #ISL-27640mm
Power Reserve
Supermarine 300M40h
Islander Republic Traveler GMT Watch with Black Dial #ISL-276
Water Resistance
Supermarine 300M300m
Islander Republic Traveler GMT Watch with Black Dial #ISL-276200m
MSRP
Supermarine 300M$3,550
Islander Republic Traveler GMT Watch with Black Dial #ISL-276$695

Full specifications

Case

7 specs
Category
Diver
GMT
Thickness
12mm
13.1mm
Lug-to-Lug
46.5mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Green
Indices
Applied

Movement

5 specs
Caliber
BE-92AE
Miyota 9075
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$3,550
$695

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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.

Islander Republic Traveler GMT Watch with Black Dial #ISL-276

Owners widely praise the Islander Republic Traveler GMT Watch with Black Dial #ISL-276 for its excellent case finishing and build quality, featuring applied indices and a matching date wheel. The watch is noted for wearing well on the wrist with ample micro-adjustment options for a comfortable fit, and it is running at +2 seconds per day out of the box, powered by an SW330-2 movement. Overall, owners rate the Islander Republic Traveler GMT Watch with Black Dial #ISL-276 highly for its finishing and wearability at the price point.

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