Side by side

Bremont Supermarine 300MvsMarathon MSAR (Medium Search & Rescue) Diver's Quartz

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

Supermarine 300M
BremontSupermarine 300M
MSRP $3,550
MSAR (Medium Search & Rescue) Diver's Quartz
MarathonMSAR (Medium Search & Rescue) Diver's Quartz
MSRP $1,450

At a glance

8 of 29 specs differ
Diameter
Supermarine 300M40mm
MSAR (Medium Search & Rescue) Diver's Quartz36mm
Power Reserve
Supermarine 300M40h
MSAR (Medium Search & Rescue) Diver's Quartz40h
Water Resistance
Supermarine 300M300m
MSAR (Medium Search & Rescue) Diver's Quartz300m
MSRP
Supermarine 300M$3,550
MSAR (Medium Search & Rescue) Diver's Quartz$1,450

Full specifications

Case

4 specs
Diameter
40mm
36mm
Thickness
12mm
18mm
Lug Width
20mm
18mm
Material
904L Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Green
Black

Movement

2 specs
Caliber
BE-92AE
Swiss High-Torque Quartz
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$3,550
$1,450

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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.

Marathon MSAR (Medium Search & Rescue) Diver's Quartz

Owners widely praise the Marathon MSAR (Medium Search & Rescue) Diver's Quartz for its tool-like aesthetic, bright tritium lume, and satisfying bezel action, making it enjoyable to handle and use. One owner finds the 36mm case comfortable after an initial adjustment period, while another reports accuracy within a few seconds of atomic time. On balance, owners rate the Marathon MSAR (Medium Search & Rescue) Diver's Quartz highly for its superb value and enjoyable tool-watch characteristics.

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