Thorn Diver T023 V1vsYema Skin Diver CMM.20

Diver T023 V1
ThornDiver T023 V1

Ref. thorn-40mm-pt5000-automatic-dive-watch-t023-v1·MSRP $189

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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.

Thorn Diver T023 V1 at true scale

Diver T023 V1

Yema Skin Diver CMM.20 at true scale

Skin Diver CMM.20

Diameter

40mm

39.5mm

Lug-to-Lug

46.6mm

lowest

47mm

Thickness

12.3mm

11.5mm

lowest

Water Resistance

200m

200m

MSRP

$189

lowest

$2,372

Movement

PT5000

Yema CMM.20

Case

5 specs
Diameter
40mm
39.5mm
Thickness
12.3mm
11.5mm
Lug-to-Lug
46.6mm
47mm
Lug Width
n/a
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
n/a
Dial Color
n/a
Black

Movement

1 specs
Caliber
PT5000
Yema CMM.20

Pricing

1 specs
MSRP
$189
$2,372
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Reviews

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

Thorn Diver T023 V1

Owners widely praise the Thorn 40mm PT5000 Automatic Dive Watch T023 V1 for its value and vintage aesthetic, with many appreciating its wearability and proportions, which contribute to a slimmer profile than many similar watches. The PT5000 movement is specifically lauded for its smooth second-hand sweep and impressive accuracy, with one owner reporting within 0/+2 seconds per day. The bracelet is noted as a point of contention, with one owner finding it of lesser quality compared to other Thorn retro diver models. Overall, owners rate the Thorn 40mm PT5000 Automatic Dive Watch T023 V1 highly for its vintage charm and smooth-running movement at an accessible price point.

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.

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