Side by side

Christopher Ward C63 Sealander Extreme GMTvsSeiko King Seiko VANAC Seiko Boutique Exclusive 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 $1,850

At a glance

16 of 29 specs differ
Diameter
C63 Sealander Extreme GMT48mm
King Seiko VANAC Seiko Boutique Exclusive Edition41mm
Power Reserve
C63 Sealander Extreme GMT56h
King Seiko VANAC Seiko Boutique Exclusive Edition72h
Water Resistance
C63 Sealander Extreme GMT150m
King Seiko VANAC Seiko Boutique Exclusive Edition100m
MSRP
C63 Sealander Extreme GMT$1,850
King Seiko VANAC Seiko Boutique Exclusive Edition$3,300

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
48mm
41mm
Thickness
12.05mm
14.3mm
Lug-to-Lug
48mm
45.1mm
Lug Width
22mm
17mm
Finish
Brushed + Bead-blasted + Sandblasted
Brushed and polished
Water Resistance
150m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Box
AR Coating
Underside
Anti-reflective coating on inner surface
Lume
SLN X1 BL / GL
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
SW330
8L45
Beat Rate
4 vph
28,800 vph
Power Reserve
56h
72h
Jewels
25
35
Complications
GMT, Moonphase, Day-date
None

Pricing

1 specs
MSRP
$1,850
$3,300

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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.

Seiko King Seiko VANAC Seiko Boutique Exclusive Edition

Owners and reviewers widely praise the King Seiko VANAC Seiko Boutique Exclusive Edition for its intricate finishing on its angular case and bracelet, comfortable feel on the wrist, and retro-inspired design. Specific call-outs include the crisp blue-and-white colorway, vibrant titanium case design, novel dial ring, and striking purple dial options. Owners consider it a premium and value-for-money piece, appreciating its dial texture, polished and brushed finishes, and intentional 70s-inspired aesthetic. The 8L45 movement is noted for its 70-72 hour power reserve, with accuracy figures ranging from +10/-5 seconds per day to -5/+10 seconds per day. One reviewer found the accuracy not great for the price point, while another noted it as slightly loose compared to other brands. The lack of lume limits it to daytime use, and the hidden butterfly clasp is considered unintuitive by one source. Some owners wished the bracelet tapered more at the clasp.

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