Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsBremont Supermarine 300M

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

OSAR-D (Original SAR with Date) Automatic 46mm
MarathonOSAR-D (Original SAR with Date) Automatic 46mm
MSRP $2,500
Supermarine 300M
BremontSupermarine 300M
MSRP $3,550

At a glance

8 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 46mm46mm
Supermarine 300M40mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 46mm40h
Supermarine 300M40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 46mm300m
Supermarine 300M300m
MSRP
OSAR-D (Original SAR with Date) Automatic 46mm$2,500
Supermarine 300M$3,550

Full specifications

Case

5 specs
Diameter
46mm
40mm
Thickness
13mm
12mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
904L Stainless Steel

Crystal & Dial

1 specs
Dial Color
Black
Green

Movement

1 specs
Caliber
Sellita SW220-1
BE-92AE

Pricing

1 specs
MSRP
$2,500
$3,550

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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.

Marathon OSAR-D (Original SAR with Date) Automatic 46mm

The Marathon OSAR-D (Original SAR with Date) Automatic 46mm is widely regarded as a rugged and legible timepiece, featuring a familiar geometric dial with MaraGlo lume and a white dial with applied hour markers that enhance legibility. Owners and reviewers note its 300-meter water resistance and the reliable Swiss-made Sellita SW200-1 automatic movement with improved shock protection. The watch is described as large, thick, and heavy, with some owners finding it comfortable on the wrist while others note its substantial presence, particularly at a table. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 46mm for its rugged build and excellent legibility.

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.

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