Side by side

Christopher Ward C1 Jump Hour Mk VvsSeiko Prospex SPEEDTIMER Mechanical Chronograph

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 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 SPEEDTIMER Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design with a clean, balanced dial and an external tachymeter bezel. Reviewers highlight the upgraded case and bracelet, noting improved comfort and good value for a well-designed chronograph with an in-house movement. The caliber 8R48 movement features a vertical clutch and column wheel with MEMS technology for durability and precision. Points to consider include the 4:30 date window and a 14.6mm thickness, while the 45-hour power reserve is noted as an area for potential improvement. On balance, reviewers find the Seiko Prospex SPEEDTIMER Mechanical Chronograph to be a solid offering with good value, particularly for its design and in-house movement.

At a glance

17 of 29 specs differ
Diameter
C1 Jump Hour Mk V47.3mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
C1 Jump Hour Mk V41h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
C1 Jump Hour Mk V30m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
C1 Jump Hour Mk V$3,295
Prospex SPEEDTIMER Mechanical Chronograph$2,500

Full specifications

Case

7 specs
Category
Chronograph
Diameter
47.3mm
42mm
Thickness
14mm
14.6mm
Lug-to-Lug
47.3mm
49.5mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished + Sandblasted
Water Resistance
30m
100m

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW200-1
8R48
Beat Rate
4 vph
0 vph
Power Reserve
41h
45h
Jewels
26
34
Complications
GMT, Moonphase
None

Pricing

1 specs
MSRP
$3,295
$2,500
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