DIFICIANO NarwhalvsYema Skin Diver CMM.20

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

DIFICIANO Narwhal at true scale

Narwhal

Yema Skin Diver CMM.20 at true scale

Skin Diver CMM.20

Diameter

38mm

39.5mm

Lug-to-Lug

48mm

47mm

lowest

Thickness

14.2mm

11.5mm

lowest

Water Resistance

300m

highest

200m

MSRP

$419

lowest

$2,372

Movement

Seiko NH35

Yema CMM.20

Case

5 specs
Diameter
38mm
39.5mm
Thickness
14.2mm
11.5mm
Lug-to-Lug
48mm
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Lume
C3
None

Movement

2 specs
Caliber
Seiko NH35
Yema CMM.20
Power Reserve
n/a
0h

Pricing

1 specs
MSRP
$419
$2,372
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

DIFICIANO Narwhal

The DIFICIANO Narwhal is praised for its quiet operation and effective mopping, with owners noting COSC-level timekeeping and a $390 launch price seen as good value. However, some owners report connectivity issues and problems with the mapping feature, leading to a recommendation against purchase at full price, while others find the app and robot impressive. One owner finds the 38mm case appears too large for smaller wrists and notes the dial version quickly sold out. On balance, owners are split on the DIFICIANO Narwhal, with its value proposition tempered by reported connectivity and mapping issues for some.

Yema Skin Diver CMM.20

The Yema Skin Diver CMM.20 is lauded for its vintage aesthetic, 39.5mm case size, and well-proportioned handset with sharp indices. Owners praise its textured cream dial, French tool watch elegance, and the smooth winding feel of the in-house CMM.20 micro-rotor movement. The fully brushed bracelet with toolless micro-adjust clasp is considered Yema's best yet. Accuracy readings range from -3/+7 seconds per day to approximately 0 to -10 seconds per day. Some reviewers noted questionable finishing on a prototype's hour hand and a rattly, stamped clasp. The watch's pricing has been questioned by some due to brand QC reputation, and its extended lug-to-lug may challenge smaller wrists. On balance, owners and reviewers appreciate the Yema Skin Diver CMM.20 for its vintage styling and improved bracelet design at its price point.

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.