Side by side

Christopher Ward C63 Sealander Extreme GMTvsFortis Marinemaster M-40

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
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

13 of 29 specs differ
Diameter
C63 Sealander Extreme GMT40mm
Marinemaster M-4040mm
Power Reserve
C63 Sealander Extreme GMT56h
Marinemaster M-4038h
Water Resistance
C63 Sealander Extreme GMT150m
Marinemaster M-40300m
MSRP
C63 Sealander Extreme GMT$2,075
Marinemaster M-40$3,520

Full specifications

Case

5 specs
Category
GMT
Diver
Thickness
12.05mm
13mm
Lug-to-Lug
48mm
Lug Width
22mm
21mm
Water Resistance
150m
300m

Crystal & Dial

2 specs
Dial Color
Black
Orange
Lume
SLN X1 BL / GL
None

Movement

5 specs
Caliber
SW330-2
Sellita SW220-1
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
38h
Jewels
25
26
Complications
GMT
None

Pricing

1 specs
MSRP
$2,075
$3,520

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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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

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