Squale 1521 Classic COSCvsStowa Prodiver

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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.

1521 Classic COSC

Prodiver
Diameter
42mm
42mm
Lug-to-Lug
48mm
lowest
50.3mm
Thickness
12.5mm
lowest
15.6mm
Water Resistance
500m
1000m
highest
Power Reserve
38h
n/a
MSRP
$1,965
n/a
Movement
Sellita SW200-1
Sellita SW200-1
Case
5 specsCrystal & Dial
3 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Squale 1521 Classic COSC's well-proportioned 42mm case, with one reviewer calling it a masterclass in case design. The COSC certification is noted to improve accuracy, and the bezel indices are now fully lumed, a feature some owners find superior. The brushed case with polished chamfers is described as a significant and attractive aesthetic update. However, some owners prefer older bezel designs, and opinions on the lume are mixed, with one user finding it only "okay." One owner reported moisture ingress after a shower due to a loose case back on a new watch. The Squale 1521 Classic COSC is priced at CHF 1,475 and uses a Sellita SW200-1 movement. Overall, owners rate the Squale 1521 Classic COSC highly for its updated finishing and improved accuracy.
Owners widely praise the Stowa Prodiver for its unique, sharp-angled case design and robust build, considering it to outperform many divers at its price point. Some owners note a lack of a bracelet option. The consensus is that the Stowa Prodiver is highly regarded for its distinctive design and value, despite some concerns regarding recent customer service experiences.
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