CWC Automatic Divers Watch Mk.2 BlackvsSeiko Prospex Sea
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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.

Automatic Divers Watch Mk.2 Black

Prospex Sea
Diameter
41mm
41.7mm
Lug-to-Lug
47mm
lowest
49.5mm
Thickness
n/a
12.3mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
41h
MSRP
$1,249
$595
lowest
Movement
Sellita SW200-1
Seiko 4R35
Case
4 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the CWC Automatic Divers Watch Mk.2 Black for its excellent case finishing, clear sapphire crystal, and significantly improved lume compared to earlier models. The 120-click bezel action is consistently highlighted as perfect, and the 41mm case size is noted as wearing close to perfectly, with one reviewer specifically mentioning its modest 12mm thickness. Some owners prefer a matte finish for a more tool-like appearance, though polished versions offer a dressier look and easier scratch removal. Overall, owners rate the CWC Automatic Divers Watch Mk.2 Black highly for its build quality and legibility at the price.
The bezel action is smooth. The price has increased due to popularity.
Owners widely report the Seiko Prospex Sea is a well-built watch at a fair price, with some finding its 41.7mm case size perfect while others with smaller wrists consider it big, thick, and heavy. Reviewers consistently praise the excellent lume and robust design. One owner notes the bezel action is smoother and more precise than some other Seiko divers. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its value and proven design.
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