Side by side

Christopher Ward C1 Jump Hour Mk VvsSeiko Prospex Sea Save the Ocean Special Edition

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

C1 Jump Hour Mk V
Christopher WardC1 Jump Hour Mk V
MSRP $3,295

At a glance

16 of 29 specs differ
Diameter
C1 Jump Hour Mk V47.3mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
C1 Jump Hour Mk V41h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
C1 Jump Hour Mk V30m
Prospex Sea Save the Ocean Special Edition200m
MSRP
C1 Jump Hour Mk V$3,295
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

8 specs
Category
Diver
Diameter
47.3mm
45mm
Thickness
14mm
13.2mm
Lug-to-Lug
47.3mm
47.7mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
30m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Noon
Black
Lume
SLN C1 X1 BL
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
SW200
4R36
Beat Rate
4 vph
28,800 vph
Jewels
26
24
Complications
GMT, Moonphase
None

Pricing

1 specs
MSRP
$3,295
$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 Jump Hour Mk V

Owners and reviewers widely praise the spectacular lume application and the multi-level dial design of the Christopher Ward C1 Jump Hour Mk V, noting its crisp legibility and the innovative JJ01 jump-hour module. The 39mm case is described as compact with alternating brushed and polished finishing, and the dial features a radially grooved center with a sapphire minute track. Some find the 14mm thickness and $3k price point high, while accuracy is rated at approximately ±20 seconds per day. The watch utilizes a Sellita SW200-1 base with a 38-hour power reserve. Overall, owners and reviewers appreciate the striking dial design and jump-hour complication, despite some reservations about the thickness and accuracy.

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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