Side by side

CWC E9 Automatic Diver WatchvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

E9 Automatic Diver Watch
CWCE9 Automatic Diver Watch
MSRP $1,391
Prospex Sea
SeikoProspex Sea
MSRP $595

At a glance

11 of 29 specs differ
Diameter
E9 Automatic Diver Watch41mm
Prospex Sea41.7mm
Power Reserve
E9 Automatic Diver Watch40h
Prospex Sea41h
Water Resistance
E9 Automatic Diver Watch300m
Prospex Sea200m
MSRP
E9 Automatic Diver Watch$1,391
Prospex Sea$595

Full specifications

Case

4 specs
Diameter
41mm
41.7mm
Thickness
12mm
12.3mm
Lug-to-Lug
47mm
49.5mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
CWC E9 Automatic Diver Watch (SF300-E9 AS120)
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW200-1
4R35
Power Reserve
40h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$1,391
$595

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What people say

Owners + reviewers, side by side

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

CWC E9 Automatic Diver Watch

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 due to its thin case, small size, and legibility. Some owners appreciate its durability and value as a beater or summer watch, noting its solid bars are a military requirement and highlighting its significant wrist presence and unique "Jolly Roger" dial design. Critics find the CWC E9 Automatic Diver Watch overpriced for its mineral crystal and 60-click bezel, despite its military heritage and HAQ movement, and its luminous paint is noted as low glow. Overall, owners rate the CWC E9 Automatic Diver Watch highly for its military-spec toughness and wrist presence, despite some reservations about its value proposition.

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

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