Side by side

Bremont Supermarine 300MvsPhoibos Voyager GMT

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
Voyager GMT
PhoibosVoyager GMT
MSRP $429

At a glance

11 of 29 specs differ
Diameter
Supermarine 300M40mm
Voyager GMT39mm
Power Reserve
Supermarine 300M40h
Voyager GMT40h
Water Resistance
Supermarine 300M300m
Voyager GMT100m
MSRP
Supermarine 300M$3,550
Voyager GMT$429

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
12mm
13.2mm
Lug-to-Lug
45mm
Material
904L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Green
Red
Lume
None
Super-LumiNova

Movement

1 specs
Caliber
BE-92AE
SII NH34

Pricing

1 specs
MSRP
$3,550
$429

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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.

Phoibos Voyager GMT

Owners widely praise the Phoibos Voyager GMT for its exceptional fit and finish, attractive dials that play with light, and outstanding lume. The bezel action is described as perfect with a grippy, smooth-threaded crown, and the bracelet clasp is noted as high quality for the price. Accuracy varies, with one owner reporting +1/+2 seconds per day and another around -6 seconds per day. Some owners find the 14.5mm thickness chunky and difficult to wear with long sleeves, and the 24-click bezel limits tracking to hour-offset time zones. The date color can blend into the dial, and the date wheel may show slight misalignment. On balance, owners rate the Phoibos Voyager GMT highly for its vibrant dials and excellent value.

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