Side by side

Fortis Stratoliner S-41vsYema Wristmaster Slim CMM.20

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450
Wristmaster Slim CMM.20
YemaWristmaster Slim CMM.20
MSRP $2,117

At a glance

11 of 29 specs differ
Diameter
Stratoliner S-4141mm
Wristmaster Slim CMM.2039mm
Power Reserve
Stratoliner S-4160h
Wristmaster Slim CMM.2040h
Water Resistance
Stratoliner S-41200m
Wristmaster Slim CMM.20100m
MSRP
Stratoliner S-41$5,450
Wristmaster Slim CMM.20$2,117

Full specifications

Case

6 specs
Category
Chronograph
GMT
Diameter
41mm
39mm
Thickness
14mm
9mm
Lug Width
21mm
24mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

3 specs
Caliber
Manufacture Caliber WERK 17
Yema CMM.20
Power Reserve
60h
40h
Jewels
36
25

Pricing

1 specs
MSRP
$5,450
$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.

Fortis Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

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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