Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

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

At a glance

14 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41mm
42mm
Thickness
14mm
14.6mm
Lug-to-Lug
48mm
49.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Anthracite
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW200-1
8R48
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$2,100
$2,500

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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 Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

Owners widely praise the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition for its refined presence and intricate dial patterns, with some favoring its unique red dial and steel bezel over other Speedtimer models. However, some owners criticize the 24-hour subdial as useless, the date window as recessed, and the stock bracelet as difficult to fit, while others find the pushers stick out too much. One owner notes the $995 price point is high for the 6R55 movement, suggesting a lower range, though others appreciate the Seiko finishing and charm. On balance, owners rate the Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition well for its unique aesthetic and finishing, despite some functional and value concerns.

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