Circula Watches AquaSport GMTvsYema 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.

Circula Watches AquaSport GMT at true scale

AquaSport GMT

Yema Skin Diver CMM.20 at true scale

Skin Diver CMM.20

Diameter

40mm

39.5mm

Lug-to-Lug

46mm

lowest

47mm

Thickness

12.6mm

11.5mm

lowest

Water Resistance

200m

200m

Power Reserve

56h

n/a

MSRP

n/a

$2,372

Movement

Sellita SW330-2

Yema CMM.20

Case

4 specs
Diameter
40mm
39.5mm
Thickness
12.6mm
11.5mm
Lug-to-Lug
46mm
47mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Blue
Black

Movement

2 specs
Caliber
Sellita SW330-2
Yema CMM.20
Power Reserve
56h
0h

Pricing

1 specs
MSRP
n/a
$2,372
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Reviews

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

Circula Watches AquaSport GMT

Owners widely praise the Circula Watches AquaSport GMT for its spectacular lume and handcrafted case finishing, with many appreciating its 1970s-inspired styling and unorthodox color choices. Reviewers consistently flag it as good value for money, noting the Sellita SW330-2 movement and sapphire crystal with anti-reflective coating. Some reviewers and owners point out that it uses a caller GMT movement, which is less versatile for active travelers than a flyer GMT, and one owner notes the GMT hand only moves forward. Overall, owners and reviewers rate the Circula Watches AquaSport GMT highly for its retro design and impressive finishing at its 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.