Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsSinn U50 SDR with TEGIMENT option

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Marathon GSAR (Government Search & Rescue) Diver's Automatic

The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised for its legibility, comfort, and exceptional tritium illumination, with reviewers highlighting its utilitarian, military-equipment feel and a 41mm case size considered ideal. Owners appreciate its grippy bezel and the 300 meters of water resistance provided by the screw-down crown, deeming it a solid value for a Swiss-made tool watch. Some owners report quality control issues, with one user needing to warranty two watches, and another notes the GSAR wears taller than other models, leading to occasional bumping. The reliable ETA 2824-A2 movement is a consistent feature. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its bright tritium lume and robust, no-nonsense tool watch design.

Sinn U50 SDR with TEGIMENT option

The Sinn U50 SDR with TEGIMENT option is widely praised for its robust submarine steel construction, impressive 50bar water resistance, and excellent anti-reflective coating. Owners and reviewers highlight its toolish, legible dial, satisfyingly tactile bezel, and the outstanding scratch resistance provided by the TEGIMENT hardening. Some owners note the lume is underwhelming, and a few find the clasp aesthetically large and chunky despite its functional diver's extension. Overall, owners and reviewers rate the Sinn U50 SDR with TEGIMENT option highly for its exceptional build quality and scratch resistance at its price point.

At a glance

17 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
U50 SDR with TEGIMENT option41mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic
U50 SDR with TEGIMENT option38h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
U50 SDR with TEGIMENT option500m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
U50 SDR with TEGIMENT option$3,326

Full specifications

Case

6 specs
Thickness
14mm
11.2mm
Lug-to-Lug
48mm
Material
316L Stainless Steel
Stainless Steel
Finish
bead-blasted
Water Resistance
300m
500m
Caseback

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW200-1
Sellita SW300-1
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
25
Complications
None
Date

Pricing

1 specs
MSRP
$2,100
$3,326
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