Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsSugess MoonPhase Master S437

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

GSAR (Government Search & Rescue) Diver's Automatic
MarathonGSAR (Government Search & Rescue) Diver's Automatic
MSRP $2,100
MoonPhase Master S437
SugessMoonPhase Master S437
MSRP $549

At a glance

14 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
MoonPhase Master S43740mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
MoonPhase Master S43748h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
MoonPhase Master S43750m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
MoonPhase Master S437$549

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
41mm
40mm
Thickness
14mm
13.5mm
Lug-to-Lug
48mm
47.8mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
50m
Caseback
Solid
Display

Crystal & Dial

2 specs
Dial Color
Anthracite
White
Lume
None
X1

Movement

3 specs
Caliber
Sellita SW200-1
ST2528
Power Reserve
40h
48h
Complications
None
Moonphase, Date

Pricing

1 specs
MSRP
$2,100
$549

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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 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.

Sugess MoonPhase Master S437

Owners widely praise the Sugess MoonPhase Master S437 for its striking dial, often described as deep blue or aventurine, and its value, with prices around $171-$175. The Seagull ST1908 movement is noted as accurate, with one owner reporting +3 seconds over 18 hours and another +7 seconds daily, and its hand-winding action is smooth. However, the watch's thickness, potentially over 13mm, is a concern for some as a dress watch, and the long lugs may pose a fit issue on smaller wrists. A potential design flaw in the moonphase window, showing two phases simultaneously, is flagged as a deal-breaker by some. The included leather straps are considered stiff and uncomfortable, and the domed sapphire crystal lacks AR coating, leading to reflections. On balance, owners rate the Sugess MoonPhase Master S437 highly for its stunning dial and value, despite some fit and finishing concerns.

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