Side by side

Christopher Ward C63 Sealander Extreme GMTvsCWC Mellor-72 Mechanical Watch

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
Mellor-72 Mechanical Watch
CWCMellor-72 Mechanical Watch
MSRP $499

At a glance

17 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Mellor-72 Mechanical Watch38mm
Power Reserve
C63 Sealander Extreme GMT56h
Mellor-72 Mechanical Watch40h
Water Resistance
C63 Sealander Extreme GMT150m
Mellor-72 Mechanical Watch50m
MSRP
C63 Sealander Extreme GMT$1,850
Mellor-72 Mechanical Watch$499

Full specifications

Case

7 specs
Category
GMT
Field
Diameter
48mm
38mm
Thickness
12.05mm
12mm
Lug-to-Lug
48mm
42mm
Lug Width
22mm
18.5mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
50m

Crystal & Dial

4 specs
Crystal
Sapphire
Acrylic
AR Coating
Underside
Inner
Dial Color
Black
CWC Mellor-72 Mechanical Watch
Lume
SLN X1 BL / GL
Super-LumiNova

Movement

5 specs
Caliber
SW330
Sellita SW210
Type
Automatic
Manual
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
40h
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$499

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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.

CWC Mellor-72 Mechanical Watch

The CWC Mellor-72 Mechanical Watch is widely praised for its authentic, utilitarian design and satisfying hand-wound Sellita SW210 movement, with owners noting a smooth winding action and excellent accuracy, including one report of zero seconds deviation over 24 hours. Reviewers highlight the era-appropriate dial and functional "piece of kit" appeal, though some find the 35mm case small by modern standards and legibility can be impacted by the domed hesalite crystal. Owners report issues with fixed lug bars being poorly filled in and fogging inside the crystal, while others state no water resistance problems. Overall, owners and reviewers appreciate the CWC Mellor-72 Mechanical Watch for its genuine military heritage and functional charm, despite some practical drawbacks.

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