Side by side

Christopher Ward C1 Jump Hour Mk VvsSeiko Prospex Sea 1970 Heritage Diver's 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 $3,095

At a glance

15 of 29 specs differ
Diameter
C1 Jump Hour Mk V40mm
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition42.7mm
Power Reserve
C1 Jump Hour Mk V41h
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition70h
Water Resistance
C1 Jump Hour Mk V30m
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition200m
MSRP
C1 Jump Hour Mk V$3,095
Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition$1,350

Full specifications

Case

6 specs
Category
Diver
Diameter
40mm
42.7mm
Thickness
14mm
13.2mm
Lug-to-Lug
47.3mm
46.4mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
30m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Curved
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
SW200-1
6R35
Beat Rate
4 vph
28,800 vph
Power Reserve
41h
70h
Jewels
26
24

Pricing

1 specs
MSRP
$3,095
$1,350

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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

The Christopher Ward C1 Jump Hour Mk V is praised for its proprietary JJ01 jumping hour complication and multi-level dial design featuring a floating sapphire dial with a lumed jump hour aperture. Reviewers note the 39mm stainless steel case's mix of brushed and polished finishes, with a polished bezel and brushed midcase. The dial's radially grooved center and sapphire minute track with a lumed underside enhance legibility, and the Super-LumiNova execution is described as an eye-catcher. The watch is powered by the JJ01 module atop a Sellita SW200-1 movement, offering a 38-hour power reserve. Accuracy is rated at approximately ±20 seconds per day. Some owners express concerns about the watch's 14mm thickness. Overall, owners and reviewers appreciate the unique dial execution and complication at its price point.

Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is praised for its beautiful design and refinement over previous models, featuring vertically textured glacier-inspired dials. Owners, however, consider the €1500 RRP too high, suggesting a price closer to €900-€1000, noting the aluminum bezel insert instead of ceramic. Some owners report the 6R movement runs slow. On balance, owners find the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition beautiful and a refinement, but the price and aluminum bezel are points of contention.

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