Side by side

CWC Automatic Divers Watch Mk.2 BlackvsGrand Seiko SBGA427

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

Automatic Divers Watch Mk.2 Black
CWCAutomatic Divers Watch Mk.2 Black
MSRP $1,249
SBGA427
Grand SeikoSBGA427
MSRP $5,800
What people say

Owners + reviewers, side by side

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

CWC Automatic Divers Watch Mk.2 Black

Owners widely praise the CWC Automatic Divers Watch Mk.2 Black for its brushed chapter ring, precise 120-click bezel, clear sapphire crystal, excellent case finishing, and significantly improved lume. The watch is considered a terrific value with solid construction. Some owners express a preference for a matte finish for a more tool-like appearance, though polished versions offer a dressier look and easier scratch removal. On balance, owners rate the CWC Automatic Divers Watch Mk.2 Black highly for its tool-like features and excellent value.

From video reviewers

The bezel action is smooth. The price has increased due to popularity.

Grand Seiko SBGA427

Grand Seiko SBGA427 owners widely praise its extensive Zaratsu polishing and the "hall of mirrors" effect created by its diamond-cut indexes, complemented by a subtle, reeded dial and a striking green seconds hand. The 39mm case is noted for its comfortable, tapered bracelet, and the 9R65 Spring Drive movement is visible through the caseback. Some owners report the highly polished Zaratsu finish is prone to scuffs and scratches, with one mentioning a scratch near 1 o'clock. The Grand Seiko SBGA427 sold for $3750. Overall, owners rate the Grand Seiko SBGA427 highly for its exceptional finishing and the unique visual appeal of its dial and indexes.

At a glance

13 of 29 specs differ
Diameter
Automatic Divers Watch Mk.2 Black41mm
SBGA42739mm
Power Reserve
Automatic Divers Watch Mk.2 Black40h
SBGA42772h
Water Resistance
Automatic Divers Watch Mk.2 Black300m
SBGA427100m
MSRP
Automatic Divers Watch Mk.2 Black$1,249
SBGA427$5,800

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41mm
39mm
Thickness
12mm
12.3mm
Lug-to-Lug
47mm
46.8mm
Lug Width
20mm
19mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
CWC Automatic Divers Watch Mk.2 Black (SF300 AS120)
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200-1
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,249
$5,800
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