Side by side

Christopher Ward C63 Sealander Extreme GMTvsOak & Oscar The Humboldt GMT SAR Edition

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
The Humboldt GMT SAR Edition
Oak & OscarThe Humboldt GMT SAR Edition
MSRP $2,950

At a glance

14 of 29 specs differ
Diameter
C63 Sealander Extreme GMT40mm
The Humboldt GMT SAR Edition39.5mm
Power Reserve
C63 Sealander Extreme GMT56h
The Humboldt GMT SAR Edition56 hoursh
Water Resistance
C63 Sealander Extreme GMT150m
The Humboldt GMT SAR Edition200m
MSRP
C63 Sealander Extreme GMT$2,075
The Humboldt GMT SAR Edition$2,950

Full specifications

Case

7 specs
Diameter
40mm
39.5mm
Thickness
12.05mm
12.5mm
Lug-to-Lug
48mm
46.8mm
Lug Width
22mm
20mm
Material
Stainless Steel
Grade 5 Titanium
Water Resistance
150m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Lume
SLN X1 BL / GL
Super-LumiNova

Movement

3 specs
Caliber
SW330-2
Sellita SW330
Power Reserve
56h
56 hoursh
Complications
GMT
None

Pricing

1 specs
MSRP
$2,075
$2,950

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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.

Oak & Oscar The Humboldt GMT SAR Edition

Oak & Oscar The Humboldt GMT SAR Edition is praised for its anti-magnetic properties, sandwich lume dial, and overall construction quality for its price point. It features a brushed Grade 5 titanium case, a navy blue sandwich dial with an orange minute track and seconds hand, and a Sellita SW330 movement with a 56-hour power reserve. Minor drawbacks noted include bracelet sizing adjustment and lume brightness. On balance, owners and reviewers rate Oak & Oscar The Humboldt GMT SAR Edition highly for its robust construction and unique dial design at its price point.

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