CWC E9 Automatic Diver WatchvsSeiko 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.

E9 Automatic Diver Watch

Prospex Sea
Diameter
41mm
43.8mm
Lug-to-Lug
47mm
lowest
48.7mm
Thickness
n/a
12.8mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
41h
MSRP
$1,391
$625
lowest
Movement
Sellita SW200-1
Seiko 4R35
Case
5 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 E9 Automatic Diver Watch for its military-spec toughness and satisfyingly easy-to-wind crown, with one owner calling it a perfect reissue. The watch is noted for its legibility and significant wrist presence, enhanced by its unique "Jolly Roger" dial design. Some critics find the CWC E9 Automatic Diver Watch overpriced for its mineral crystal and 60-click bezel, and its luminous paint is noted as low glow. Overall, owners rate the CWC E9 Automatic Diver Watch highly for its military heritage and durability as a beater watch.
The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.
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