Side by side

Christopher Ward C1 MoonglowvsSeiko Prospex Sea Save the Ocean Special Edition

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

C1 Moonglow
Christopher WardC1 Moonglow
MSRP $2,850

At a glance

15 of 29 specs differ
Diameter
C1 Moonglow47.9mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
C1 Moonglow38h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
C1 Moonglow30m
Prospex Sea Save the Ocean Special Edition200m
MSRP
C1 Moonglow$2,850
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

7 specs
Category
Diver
Diameter
47.9mm
45mm
Thickness
12.9mm
13.2mm
Lug-to-Lug
47.9mm
47.7mm
Lug Width
20mm
22mm
Finish
Brushed + Polished
Brushed and polished
Water Resistance
30m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
SLN X1 WL C1
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
SW220
4R36
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
41h
Jewels
26
24
Complications
Moonphase, Day-date
None

Pricing

1 specs
MSRP
$2,850
$625

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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 C1 Moonglow

Owners widely praise the Christopher Ward C1 Moonglow for its gorgeous, avant-garde moonphase display and impressive lume, with many finding it comfortable and well-wearing. The constantly rotating moon phase complication is a highlight, and its accuracy is noted as exceptional. However, some find the lume on the date ring disappointing, fading quickly, and one owner finds the second, less visible moon distracting. Overall, owners rate the Christopher Ward C1 Moonglow highly for its visually engaging moonphase and value at the price point.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its attractive, unique, and textured dials, often described as having a "Grand Seiko feel" at a more accessible price point, with specific mentions of wave patterns, lagoon hues, and manta ray motifs. Owners appreciate the smooth bezel operation and satisfactory lume. Accuracy figures vary, with one owner reporting +5 seconds per day, while another notes a range from +1/+2 to about -6 seconds per day. The 6R35 movement offers a 70-hour power reserve, and some models feature sapphire crystals. Criticisms include a desire for exhibition casebacks and concerns about the quality and security of the stamped metal clasps and bracelets, which are frequently described as rattly or underwhelming, though this is noted as a common Seiko trait. Some owners are split on the number of Save the Ocean variations and dislike the cyclops magnifier.

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