Side by side

Bremont Supermarine 300MvsLongines FLAGSHIP CLASSIC

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
FLAGSHIP CLASSIC
LonginesFLAGSHIP CLASSIC
MSRP $2,700

At a glance

19 of 29 specs differ
Diameter
Supermarine 300M40mm
FLAGSHIP CLASSIC30mm
Power Reserve
Supermarine 300M40h
FLAGSHIP CLASSIC
Water Resistance
Supermarine 300M300m
FLAGSHIP CLASSIC30m
MSRP
Supermarine 300M$3,550
FLAGSHIP CLASSIC$2,700

Full specifications

Case

9 specs
Category
Diver
Diameter
40mm
30mm
Thickness
12mm
8.7mm
Lug-to-Lug
47mm
Lug Width
20mm
21mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied

Movement

6 specs
Caliber
BE-92AE
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$3,550
$2,700

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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.

Longines FLAGSHIP CLASSIC

Owners widely praise the Longines FLAGSHIP CLASSIC for its quality execution, comfortable dimensions, and value, with many appreciating its classic styling and solid engineer bracelet. The 36mm and 38.5mm variants are considered ideal for a dress watch, offering understated elegance and impeccable finishing. One owner notes a smooth winding feel from the L629.2 movement, while another reports accuracy within +/- 5 seconds per day. However, the polished case is described as a smudge magnet, and the white Roman dial is not universally appealing. The 42-hour power reserve is flagged as a weaker characteristic by one reviewer. On balance, owners and reviewers rate the Longines FLAGSHIP CLASSIC highly for its neo-vintage design and build quality at its price point.

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