Side by side

Christopher Ward C63 Sealander Extreme GMTvsTudor Black Bay

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
Black Bay
TudorBlack Bay
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.

Tudor Black Bay

Owners widely praise the Tudor Black Bay for its comfortable wearability, robust build, and vintage-inspired aesthetics, with specific mentions of its satisfying winding feel and sturdy bezel action. Reviewers highlight the 39mm Black Bay 58's comfortable size and thinness, while others note the 41mm Master Chronometer's reliable timekeeping and magnetic resistance. Some owners find the GMT hand difficult to distinguish in low light. A recurring point of contention across multiple sources is the lack of on-the-fly micro-adjustment on the bracelet, though some find aftermarket solutions adequate. One owner reported the watch losing two minutes a day after six years, requiring a service. Overall, owners and reviewers rate the Tudor Black Bay highly for its blend of vintage charm, modern robustness, and comfortable wearability.

From video reviewers

The COSC-certified accuracy of the movement is a notable strength. The 14.7mm to 14.8mm thickness is cited as a potential drawback. Reviewers are divided on whether the newer models represent a departure from the Black Bay's heritage design.

At a glance

13 of 29 specs differ
Diameter
C63 Sealander Extreme GMT40mm
Black Bay41mm
Power Reserve
C63 Sealander Extreme GMT56h
Black Bay70h
Water Resistance
C63 Sealander Extreme GMT150m
Black Bay200m
MSRP
C63 Sealander Extreme GMT$2,075
Black Bay

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
40mm
41mm
Thickness
12.05mm
14.7mm
Lug-to-Lug
48mm
46mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
150m
200m
Caseback
Solid
Engraved

Crystal & Dial

1 specs
Lume
SLN X1 BL / GL
None

Movement

4 specs
Caliber
SW330-2
MT5602
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
70h
Complications
GMT
None

Pricing

1 specs
MSRP
$2,075
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