Side by side

Christopher Ward C63 Sealander Extreme GMTvsLongines MASTER COLLECTION

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 $1,850
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $3,100

At a glance

21 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
MASTER COLLECTION42mm
Power Reserve
C63 Sealander Extreme GMT56h
MASTER COLLECTION
Water Resistance
C63 Sealander Extreme GMT150m
MASTER COLLECTION30m
MSRP
C63 Sealander Extreme GMT$1,850
MASTER COLLECTION$3,100

Full specifications

Case

8 specs
Category
GMT
Diameter
48mm
42mm
Thickness
12.05mm
9.64mm
Lug-to-Lug
48mm
49.6mm
Lug Width
22mm
21mm
Finish
Brushed + Bead-blasted + Sandblasted
Water Resistance
150m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Black
Silver
Indices
Applied
Lume
SLN X1 BL / GL
None

Movement

7 specs
Caliber
SW330
L888.5
Beat Rate
4 vph
0 vph
Power Reserve
56h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$3,100

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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

Owners and reviewers widely praise the Christopher Ward C63 Sealander Extreme GMT for its excellent value, tactical and travel-ready design, and impressive lume, with the black dial being a collective favorite. Its 41mm brushed steel case is noted for comfort and wearability, complemented by a well-proportioned design and excellent legibility. The watch features a Sellita SW330-2 movement with a 56-hour power reserve and 150m water resistance, including a shock-absorbing mount. Some find its refinement slightly less than pricier alternatives, and its GMT movement is considered less practical than a flyer GMT. On balance, the Christopher Ward C63 Sealander Extreme GMT is highly regarded by owners and reviewers for its compelling blend of features, rugged design, and exceptional value.

Longines MASTER COLLECTION

Owners and reviewers widely praise the Longines Master Collection for its excellent fit and finish, heritage-inspired design with features like Breguet numerals and leaf hands, and the value it offers, particularly for complications like chronographs and annual calendars. Specific models are noted for their beautiful dial execution, creamy white barleycorn or blue starburst finishes, and practical complications. Some owners find the Master Collection thin and dressy, appreciating its vintage aesthetic. However, drawbacks mentioned include a subdial potentially obscuring numerals, a bracelet lacking micro-adjustments causing fit issues for some, and a case finishing described as homogenous by one owner. The 30m water resistance on annual calendar models is considered light, and the crown and pushers on the moon phase chronograph are described as uninspiring. One owner reported a broken moon phase setting mechanism.

From video reviewers

The diamond hour markers are a notable strength. The movement accuracy was not discussed.

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