Side by side

Christopher Ward C1 Moonphase 37vsSeiko King Seiko VANAC

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

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 C1 Moonphase 37

Owners widely praise the Christopher Ward C1 Moonphase 37 for its aventurine dial and moon display, with one user awarding it a perfect score for its celestial theme. However, the lack of hour markers and lume-less hands make time-telling difficult, and hands can disappear against the dial. The COSC-certified movement averages +2.3 seconds per day, and the bracelet clasp is noted for comfort. The moonphase complication itself is reported by one owner to be inaccurate despite manufacturer attempts to correct it, though other users view such complications as primarily decorative. The 38-hour power reserve is considered short. Overall, owners rate the Christopher Ward C1 Moonphase 37 highly for its striking aventurine dial and moon focus, despite challenges with legibility and the practical accuracy of its moonphase complication.

From video reviewers

The dial finishing—textured surface with applied indices and aventurine depth—stands as the defining aesthetic achievement, complemented by an exceptionally accurate 128-year moonphase mechanism. The 37mm case may feel undersized for wearers transitioning from larger sports watches.

Seiko King Seiko VANAC

Owners widely praise the King Seiko VANAC's sharp case lines, intricate finishing, and unique 1970s aesthetic, with many highlighting the striking dial colors and premium feel. Reviewers note the 41mm titanium case, box sapphire crystal, 100m water resistance, and the 72-hour power reserve of the 8L45 movement, rated to -5/+10 seconds per day. Some owners find the bracelet design could be improved with a narrower taper, and the watch's thickness is a concern for some, particularly given its price point. The consensus is that the King Seiko VANAC offers a distinctive vintage-inspired design and quality finishing, making it a compelling, albeit polarizing, choice.

At a glance

17 of 29 specs differ
Diameter
C1 Moonphase 3744.07mm
King Seiko VANAC41mm
Power Reserve
C1 Moonphase 3738h
King Seiko VANAC72h
Water Resistance
C1 Moonphase 3730m
King Seiko VANAC100m
MSRP
C1 Moonphase 37$3,050
King Seiko VANAC$3,850

Full specifications

Case

7 specs
Diameter
44.07mm
41mm
Thickness
13.1mm
14.3mm
Lug-to-Lug
44.07mm
45.1mm
Lug Width
20mm
17mm
Material
Stainless Steel
Finish
Brushed + Polished
Water Resistance
30m
100m

Crystal & Dial

4 specs
Crystal Shape
Box
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Lume
SLN X1 WL C1
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
Sellita SW220-1
8L45
Beat Rate
4 vph
0 vph
Power Reserve
38h
72h
Jewels
26
35
Complications
Moonphase
None

Pricing

1 specs
MSRP
$3,050
$3,850
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