Side by side

Christopher Ward C63 Sealander Extreme GMTvsGrand Seiko SLGW004

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

C63 Sealander Extreme GMT
Christopher WardC63 Sealander Extreme GMT
MSRP $2,075
SLGW004
Grand SeikoSLGW004
MSRP $30,000

At a glance

15 of 29 specs differ
Diameter
C63 Sealander Extreme GMT40mm
SLGW00438.8mm
Power Reserve
C63 Sealander Extreme GMT56h
SLGW00480h
Water Resistance
C63 Sealander Extreme GMT150m
SLGW00430m
MSRP
C63 Sealander Extreme GMT$2,075
SLGW004$30,000

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
40mm
38.8mm
Thickness
12.05mm
10.4mm
Lug-to-Lug
48mm
43.7mm
Lug Width
22mm
19mm
Material
Stainless Steel
Gold
Water Resistance
150m
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
SLN X1 BL / GL
None

Movement

5 specs
Caliber
SW330-2
9SA4
Type
Automatic
Manual
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
80h
Complications
GMT
None

Pricing

1 specs
MSRP
$2,075
$30,000

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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.

Christopher Ward C63 Sealander Extreme GMT

The Christopher Ward C63 Sealander Extreme GMT is widely praised as a competent and comfortable tool watch offering excellent value. Reviewers consistently highlight its impressive Globolight lume, providing excellent legibility, and its well-proportioned 41mm brushed steel case. The Sellita SW330-2 movement is noted as reliable, though its standard accuracy is stated as ±20 seconds per day, and its GMT functionality is considered less advanced than some alternatives. One owner notes the green dial can be an acquired taste, and hands and markers are considered less refined than those on significantly more expensive watches. The Christopher Ward C63 Sealander Extreme GMT is priced attractively at €1,895 on bracelet. Overall, owners and reviewers highly regard the Christopher Ward C63 Sealander Extreme GMT for its rugged, travel-ready design and impressive lume at its price point.

Grand Seiko SLGW004

The Grand Seiko SLGW004 is praised for its elegant, faithful reissue design and impressive technical execution, featuring a new 9SA4 hi-beat manual-winding movement with an 80-hour power reserve and accuracy of -3/+5 seconds per day. Reviewers highlight the sharp case facets, double-signed dial, and beautifully decorated movement visible through the display caseback, along with an enjoyable winding experience. One reviewer noted a desire for better water resistance and expressed a dislike for the etched sapphire case back. Overall, reviewers rate the Grand Seiko SLGW004 highly for its elegant design and technically impressive movement.

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