Side by side

Christopher Ward C63 Sealander Extreme GMTvsCitizen Promaster Sikorsky

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
Promaster Sikorsky
CitizenPromaster Sikorsky
MSRP $469

At a glance

16 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Promaster Sikorsky42.4mm
Power Reserve
C63 Sealander Extreme GMT56h
Promaster Sikorsky40h
Water Resistance
C63 Sealander Extreme GMT150m
Promaster Sikorsky200m
MSRP
C63 Sealander Extreme GMT$1,850
Promaster Sikorsky$469

Full specifications

Case

6 specs
Category
GMT
Pilot
Diameter
48mm
42.4mm
Thickness
12.05mm
12mm
Lug-to-Lug
48mm
46mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
200m

Crystal & Dial

4 specs
Crystal
Sapphire
Mineral
AR Coating
Underside
Inner
Dial Color
Black
Grey
Lume
SLN X1 BL / GL
None

Movement

5 specs
Caliber
SW330
B877
Type
Automatic
Solar
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
40h
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$469

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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.

Citizen Promaster Sikorsky

The Citizen Promaster Sikorsky is a large 46mm watch honoring the S-92 helicopter, featuring a busy dial with red, white, blue, and yellow accents, and helicopter blade-shaped hands. It houses a solar-powered U680 movement with atomic time syncing. On balance, owners find the Citizen Promaster Sikorsky to be a unique, albeit cluttered, limited edition timepiece.

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