Side by side

Christopher Ward C1 Jump Hour Mk VvsGrand Seiko SBGR321

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
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

16 of 29 specs differ
Diameter
C1 Jump Hour Mk V47.3mm
SBGR32140mm
Power Reserve
C1 Jump Hour Mk V41h
SBGR32172h
Water Resistance
C1 Jump Hour Mk V30m
SBGR321100m
MSRP
C1 Jump Hour Mk V$3,295
SBGR321$5,200

Full specifications

Case

7 specs
Category
Dress
Diameter
47.3mm
40mm
Thickness
14mm
13mm
Lug-to-Lug
47.3mm
46.6mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
30m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Noon
Black
Lume
SLN C1 X1 BL
None

Movement

5 specs
Caliber
SW200
9S65
Beat Rate
4 vph
28,800 vph
Power Reserve
41h
72h
Jewels
26
25
Complications
GMT, Moonphase
None

Pricing

1 specs
MSRP
$3,295
$5,200

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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.

Grand Seiko SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

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