Side by side

Christopher Ward C63 True GMTvsSeiko Astron

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

C63 True GMT
Christopher WardC63 True GMT
MSRP $4,135
Astron
SeikoAstron
MSRP $2,500

At a glance

15 of 29 specs differ
Diameter
C63 True GMT48mm
Astron42mm
Power Reserve
C63 True GMT120h
Astron40h
Water Resistance
C63 True GMT100m
Astron100m
MSRP
C63 True GMT$4,135
Astron$2,500

Full specifications

Case

6 specs
Diameter
48mm
42mm
Thickness
14.15mm
12.4mm
Lug-to-Lug
48mm
49.5mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Finish
Brushed + Polished + Sandblasted
Brushed and polished

Crystal & Dial

2 specs
AR Coating
Inner
Super-clear coating
Lume
SLN X1 BL C1
LumiBrite on hands and index(es)

Movement

6 specs
Caliber
CW-002
5X83
Type
Automatic
Quartz
Beat Rate
4 vph
28,800 vph
Power Reserve
120h
40h
Jewels
33
14
Complications
GMT, Moonphase, Day-date, Small seconds
None

Pricing

1 specs
MSRP
$4,135
$2,500

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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 True GMT

The Christopher Ward C63 True GMT is widely praised for its in-house CW-002 caliber, which offers a 120-hour power reserve and COSC certification. Owners find the 39mm case size comfortable, though some note it wears closer to 40-41mm. While the PVD hands provide good contrast and the lume is praised for readability, one owner felt the orange accent lacked pop and the gloss dial/text combo appeared cheap in certain lighting. One owner also noted a perceived slight difference in production quality compared to a sibling model's bracelet. Overall, owners and reviewers rate the Christopher Ward C63 True GMT highly for its impressive power reserve and COSC-certified movement at its price point.

From video reviewers

The case finishing is praised for its polished and curved surfaces. The watch uses a Sellita SW330-2 movement. Reviewers disagree on the case size, with one noting 40.5mm and another highlighting a 36mm option.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

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