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 $1,800

At a glance

21 of 29 specs differ
Diameter
Supermarine 300M40mm
FLAGSHIP CLASSIC26mm
Power Reserve
Supermarine 300M40h
FLAGSHIP CLASSIC45h
Water Resistance
Supermarine 300M300m
FLAGSHIP CLASSIC30m
MSRP
Supermarine 300M$3,550
FLAGSHIP CLASSIC$1,800

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
40mm
26mm
Thickness
12mm
7.9mm
Lug-to-Lug
32.4mm
Lug Width
20mm
12mm
Material
904L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Green
Silver
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
BE-92AE
L592.5
Power Reserve
40h
45h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$3,550
$1,800

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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 vintage-inspired design, impressive finishing for the price, and classic 38.5mm size, with many highlighting its slim and accurate movement. Some owners appreciate the rice grain bracelet and versatility for daily wear, while others single out the elegant hands and small seconds subdial. A few reviewers note the 3-bar water resistance and closed case back as potential drawbacks, and one owner finds the 12.4mm thickness and flat caseback make it wear tall. On balance, owners and reviewers rate the Longines FLAGSHIP CLASSIC highly for its exceptional value and classic aesthetic.

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