Side by side

Fortis Flieger F-41vsYema Skin Diver CMM.20

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

Flieger F-41
FortisFlieger F-41
MSRP $2,530
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

9 of 29 specs differ
Diameter
Flieger F-4141mm
Skin Diver CMM.2039.5mm
Power Reserve
Flieger F-4138h
Skin Diver CMM.2040h
Water Resistance
Flieger F-41200m
Skin Diver CMM.20200m
MSRP
Flieger F-41$2,530
Skin Diver CMM.20$2,372

Full specifications

Case

4 specs
Category
Tool
Diver
Diameter
41mm
39.5mm
Lug-to-Lug
46mm
47mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Crystal
Sapphire
Domed Sapphire

Movement

3 specs
Caliber
Sellita SW200-1
Yema CMM.20
Power Reserve
38h
40h
Jewels
26
25

Pricing

1 specs
MSRP
$2,530
$2,372

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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 Flieger F-41

The Fortis Flieger F-41 is widely praised for its excellent machining and build quality for its price, featuring a traditional Flieger layout with modern flair, a sunburst dial with high-contrast orange accents, and a functional "Synchroline." Reviewers highlight its unique concave bezel with 24-click GMT functionality and a vivid color scheme that strikes a masterful balance. The watch offers 200 meters of water resistance and is powered by the UW-30 automatic movement. However, the UW-30 movement is noted for its modest 38-hour power reserve, and the 41mm case might be large for smaller wrists. Overall, reviewers rate the Fortis Flieger F-41 highly for its pared-back confidence and functional design at its price point.

Yema Skin Diver CMM.20

Owners and reviewers widely praise the Yema Skin Diver CMM.20 for its vintage aesthetic, 39mm-39.5mm case size, and the in-house CMM.20 micro-rotor movement. The watch features a textured cream dial, sharp applied indices, and a satisfyingly over-engineered push-to-turn bi-directional bezel. The fully brushed bracelet with toolless micro-adjust clasp is highlighted as a significant improvement, though some note its extended lug-to-lug may challenge smaller wrists. Accuracy figures range from -3/+7 seconds per day to erratic results between 0 and -10 seconds per day, with a 70-hour power reserve. Some owners express concerns about the brand's QC reputation and the micro-rotor movement's performance, while one reviewer noted questionable finishing on a prototype's hour hand and a rattly clasp. Overall, owners and reviewers rate the Yema Skin Diver CMM.20 highly for its vintage styling and improved bracelet at the price.

From video reviewers

The sapphire bezel insert and in-house CMM.20 movement are noted strengths. Reviewers questioned the value proposition compared to other Yema models.

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