Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsSeiko Coutura

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
Coutura
SeikoCoutura
MSRP $550

At a glance

11 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Coutura42mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Coutura40h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Coutura100m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Coutura$550

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41mm
42mm
Thickness
14mm
11.8mm
Lug-to-Lug
48mm
50.2mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Anthracite
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Sellita SW200-1
8T63
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$2,100
$550

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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.

Seiko Coutura

Owners widely praise the Seiko Coutura for its wear-resistant metal treatments, with one reporting minimal scratching after six years. The solar perpetual calendar and radio-controlled accuracy are noted as appealing features, alongside its attractive aesthetic and quality for the price. However, some find the design too busy, gaudy, or not suitable for daily wear, with mixed opinions on the proprietary bracelet. One owner flagged the solar power reserve as problematic, requiring constant light exposure. Overall, owners appreciate the Seiko Coutura for its functional solar and radio-controlled movement and durable build, despite some polarizing design elements.

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