Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsZelos Hammerhead V3 300m Bronze

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
Hammerhead V3 300m Bronze
ZelosHammerhead V3 300m Bronze
MSRP $449

At a glance

9 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Hammerhead V3 300m Bronze44mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Hammerhead V3 300m Bronze40h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Hammerhead V3 300m Bronze300m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Hammerhead V3 300m Bronze$449

Full specifications

Case

5 specs
Diameter
41mm
44mm
Thickness
14mm
13mm
Lug-to-Lug
48mm
44mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Anthracite
Bronze - Frost

Movement

1 specs
Caliber
Sellita SW200-1
Seiko NH35

Pricing

1 specs
MSRP
$2,100
$449

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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 Hammerhead V3 300m Bronze

Owners widely praise the Zelos Hammerhead V3 300m Bronze for its distinctive 70s-inspired design, slim 13.5mm case, and improved lume, offering a sophisticated timepiece at an accessible price point starting at $349. The unique dial is noted for evoking an otherworldly feeling, and the comfortable bracelet features on-the-fly micro-adjustment. Some enthusiasts express frustration with shipping delays and a desire to see the watch on a wrist before purchase. One owner flags that the clasp material could be more scratch-resistant, and resizing bracelet pins can be stubborn. On balance, owners rate the Zelos Hammerhead V3 300m Bronze highly for its unique design and build quality at its price point.

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