Side by side

Marathon GSAR (Government Search & Rescue) Diver's AutomaticvsYema Wristmaster Slim CMM.20

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
Wristmaster Slim CMM.20
YemaWristmaster Slim CMM.20
MSRP $2,117

At a glance

9 of 29 specs differ
Diameter
GSAR (Government Search & Rescue) Diver's Automatic41mm
Wristmaster Slim CMM.2039mm
Power Reserve
GSAR (Government Search & Rescue) Diver's Automatic40h
Wristmaster Slim CMM.2040h
Water Resistance
GSAR (Government Search & Rescue) Diver's Automatic300m
Wristmaster Slim CMM.20100m
MSRP
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Wristmaster Slim CMM.20$2,117

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
41mm
39mm
Thickness
14mm
9mm
Lug-to-Lug
48mm
Lug Width
20mm
24mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
Anthracite
Black

Movement

1 specs
Caliber
Sellita SW200-1
Yema CMM.20

Pricing

1 specs
MSRP
$2,100
$2,117

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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.

Yema Wristmaster Slim CMM.20

The Yema Wristmaster Slim CMM.20 is widely praised for its compelling integrated bracelet design and comfortable 39mm wearability. Reviewers highlight its impressive value, featuring an in-house CMM.20 micro-rotor movement with a 70-hour power reserve, adjusted to -3/+7 seconds per day, all within a slim 9mm case. Some note the domed sapphire crystal can produce glare and the dial text is quite small. On balance, reviewers rate the Yema Wristmaster Slim CMM.20 highly for its integrated design and value proposition with a micro-rotor movement.

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