Side by side

Christopher Ward C63 Sealander Extreme GMTvsSugess Seestern S434 Pro Diver

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
Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249

At a glance

14 of 29 specs differ
Diameter
C63 Sealander Extreme GMT40mm
Seestern S434 Pro Diver40mm
Power Reserve
C63 Sealander Extreme GMT56h
Seestern S434 Pro Diver40h
Water Resistance
C63 Sealander Extreme GMT150m
Seestern S434 Pro Diver200m
MSRP
C63 Sealander Extreme GMT$2,075
Seestern S434 Pro Diver$249

Full specifications

Case

7 specs
Category
GMT
Diver
Thickness
12.05mm
12mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
20mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
150m
200m
Caseback
Solid
Engraved

Crystal & Dial

2 specs
Dial Color
Black
2 Salmon
Lume
SLN X1 BL / GL
Super-LumiNova BGW9

Movement

4 specs
Caliber
SW330-2
NH35
Beat Rate
4 vph
3 vph
Power Reserve
56h
40h
Complications
GMT
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$2,075
$249

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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.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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