Side by side

CWC E9 Automatic Diver WatchvsGrand Seiko SLGA001

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

The bottom line

The 41mm E9 Automatic Diver Watch wears 5.9mm narrower than the 46.9mm SLGA001 — that's a meaningful jump on most wrists.

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.

Grand Seiko SLGA001

The Grand Seiko SLGA001 is praised for its impressive technical achievements, including a new, slimmer Spring Drive movement with a five-day power reserve and exceptional accuracy of ±0.5 seconds per day. Reviewers note the 47mm titanium case, despite its substantial dimensions, wears more comfortably due to its titanium construction, short lugs, and virtually scratch-proof finish. The watch features a 600-meter water resistance and is limited to 700 pieces, priced at $11,100. On balance, reviewers consider the Grand Seiko SLGA001 a highly capable dive watch, with its technological advancements in the Spring Drive movement being a key highlight.

From video reviewers

The watch's Spring Drive movement, specifically the Cal.9RA5, offers a 120-hour power reserve. A notable trade-off is the watch's relatively large size, with a case diameter of 46.9mm and thickness of 16.0mm, which may not suit those with smaller wrists. The high price point may be a trade-off for some buyers.

Where to get them

Check prices & track

CWC E9 Automatic Diver Watch
CWC E9 Automatic Diver Watch
MSRP $1,391
Grand Seiko SLGA001
Grand Seiko SLGA001
MSRP $11,100
E9 Automatic Diver Watch
CWCE9 Automatic Diver Watch
MSRP $1,391
SLGA001
Grand SeikoSLGA001
MSRP $11,100

At a glance

12 of 29 specs differ
Diameter
E9 Automatic Diver Watch41mm
SLGA00146.9mm
Power Reserve
E9 Automatic Diver Watch40h
SLGA001120h
Water Resistance
E9 Automatic Diver Watch300m
SLGA001100m
MSRP
E9 Automatic Diver Watch$1,391
SLGA001$11,100

Full specifications

Case

6 specs
Diameter
41mm
46.9mm
Thickness
12mm
16mm
Lug-to-Lug
47mm
50.8mm
Lug Width
20mm
23mm
Material
Stainless Steel
Titanium
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
CWC E9 Automatic Diver Watch (SF300-E9 AS120)
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200-1
9RA5
Type
Automatic
Spring Drive
Power Reserve
40h
120h

Pricing

1 specs
MSRP
$1,391
$11,100

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