Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsZelos Spearfish 3

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
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

7 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Spearfish 340mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Spearfish 340h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Spearfish 3200m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Spearfish 3$749

Full specifications

Case

4 specs
Diameter
41mm
40mm
Thickness
14mm
11.5mm
Lug-to-Lug
48mm
40mm
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Anthracite
Diver - Forged Carbon

Movement

1 specs
Caliber
Sellita SW200-1
La Joux-Perret G100

Pricing

1 specs
MSRP
$2,100
$749

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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.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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