Side by side

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

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
Helica
ZelosHelica
MSRP $499

At a glance

7 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Helica39mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Helica40h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Helica100m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Helica$499

Full specifications

Case

4 specs
Diameter
41mm
39mm
Thickness
14mm
10.5mm
Lug-to-Lug
48mm
39mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Anthracite
39 - Wave MOP

Movement

1 specs
Caliber
Sellita SW200-1
Miyota 9015

Pricing

1 specs
MSRP
$2,100
$499

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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 Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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