Side by side

Bremont Supermarine 300MvsSinn T50 GBDR

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

T50 GBDR
SinnT50 GBDR
MSRP $4,428
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.

Sinn T50 GBDR

The Sinn T50 GBDR features a titanium case with a GoldBronze bezel and matte black dial, presenting a two-tone toolish aesthetic that reviewers find appealing. The GoldBronze alloy offers improved skin compatibility and corrosion resistance, developing patina slower than standard bronze. Reviewers note a stamped clasp that can come loose and suggest the price point may be high for some Sinn enthusiasts.

At a glance

17 of 29 specs differ
Diameter
Supermarine 300M40mm
T50 GBDR41mm
Power Reserve
Supermarine 300M
T50 GBDR38h
Water Resistance
Supermarine 300M300m
T50 GBDR500m
MSRP
Supermarine 300M$3,550
T50 GBDR$4,428

Full specifications

Case

6 specs
Diameter
40mm
41mm
Thickness
12mm
12.3mm
Material
904L Stainless Steel
Titanium
Finish
bead-blasted
Water Resistance
300m
500m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Dial Color
Green
Black
Indices
Lume
None
Luminescent

Movement

5 specs
Caliber
BE-92AE
SW 300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
25
Complications
None
Date

Pricing

1 specs
MSRP
$3,550
$4,428
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