Side by side

Christopher Ward C63 Sealander Extreme GMTvsIslander Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63

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
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
IslanderIslander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
MSRP $429

At a glance

19 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-6338mm
Power Reserve
C63 Sealander Extreme GMT56h
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63
Water Resistance
C63 Sealander Extreme GMT150m
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63200m
MSRP
C63 Sealander Extreme GMT$1,850
Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63$429

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
48mm
38mm
Thickness
12.05mm
13mm
Lug-to-Lug
48mm
44.5mm
Lug Width
22mm
20mm
Finish
Brushed + Bead-blasted + Sandblasted
Water Resistance
150m
200m
Caseback
Solid
Engraved screw-in back

Crystal & Dial

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

Movement

5 specs
Caliber
SW330
Seiko NH36
Beat Rate
4 vph
0 vph
Power Reserve
56h
0h
Jewels
25
0
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$429

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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.

Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63

The Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63 is praised for its screw pins, milled scissor clasp, and embossed ceramic bezel, offering excellent specifications for its price. Owners note its better alignment compared to some alternatives and appreciate its design inspiration. Overall, owners rate the Islander 38mm Automatic Dive Watch with Radiant Blue Dial #ISL-63 highly for its build features and value.

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