Side by side

William Wood National Fallen Firefighters Foundation WatchvsYema Skin Diver CMM.20

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

Skin Diver CMM.20
YemaSkin Diver CMM.20
MSRP $2,372

At a glance

7 of 29 specs differ
Diameter
National Fallen Firefighters Foundation Watch41mm
Skin Diver CMM.2039.5mm
Power Reserve
National Fallen Firefighters Foundation Watch40h
Skin Diver CMM.2040h
Water Resistance
National Fallen Firefighters Foundation Watch100m
Skin Diver CMM.20200m
MSRP
National Fallen Firefighters Foundation Watch$820
Skin Diver CMM.20$2,372

Full specifications

Case

4 specs
Diameter
41mm
39.5mm
Thickness
15mm
11.5mm
Lug-to-Lug
49mm
47mm
Water Resistance
100m
200m

Crystal & Dial

1 specs
Dial Color
Standard
Black

Movement

1 specs
Caliber
Seiko NH35
Yema CMM.20

Pricing

1 specs
MSRP
$820
$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.

William Wood National Fallen Firefighters Foundation Watch

The case is crafted from upcycled firefighting materials, offering a unique story. The straps are made from upcycled fire hoses, a unique material nod to its heritage.

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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