Side by side

Yema Flygraf Bi-Compax French Air ForcevsYema Skin Diver CMM.20

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

Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490
Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

9 of 29 specs differ
Diameter
Flygraf Bi-Compax French Air Force40mm
Skin Diver CMM.2039.5mm
Power Reserve
Flygraf Bi-Compax French Air Force40h
Skin Diver CMM.2040h
Water Resistance
Flygraf Bi-Compax French Air Force100m
Skin Diver CMM.20200m
MSRP
Flygraf Bi-Compax French Air Force$490
Skin Diver CMM.20$2,372

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
40mm
39.5mm
Thickness
9.5mm
11.5mm
Lug-to-Lug
47mm
Water Resistance
100m
200m

Crystal & Dial

1 specs
Crystal
Sapphire
Domed Sapphire

Movement

2 specs
Caliber
Yema CMM.20
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$490
$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.

Yema Flygraf Bi-Compax French Air Force

Owners widely praise the Yema Flygraf Bi-Compax French Air Force for its attractive, toolish aesthetic and excellent quality for the price, noting the legible Type A dial and 40mm titanium case. However, the acrylic crystal scratches easily, and the titanium case is prone to marking. The mecha-quartz movement's chrono timer sweeps rather than ticks, and one owner questions the purpose of the oversized crown. The in-house Yema 2000 movement is accurate at +/- 10 seconds per day but has a 42-hour power reserve, and some owners express concerns regarding Yema's past quality control and customer service. On balance, owners rate the Yema Flygraf Bi-Compax French Air Force highly for its attractive design and value, despite concerns about material durability and brand service history.

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.

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