Side by side

Christopher Ward Twelve X Black ShadowvsSeiko Prospex Sea

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

Twelve X Black Shadow
Christopher WardTwelve X Black Shadow
MSRP $6,275
Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

13 of 29 specs differ
Diameter
Twelve X Black Shadow40mm
Prospex Sea41mm
Power Reserve
Twelve X Black Shadow120h
Prospex Sea70h
Water Resistance
Twelve X Black Shadow100m
Prospex Sea200m
MSRP
Twelve X Black Shadow$6,275
Prospex Sea$900

Full specifications

Case

5 specs
Category
Skeleton
Diver
Diameter
40mm
41mm
Lug-to-Lug
44.5mm
46.9mm
Lug Width
25mm
20mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
CW-001
6R35
Beat Rate
4 vph
28,800 vph
Power Reserve
120h
70h
Jewels
31
24

Pricing

1 specs
MSRP
$6,275
$900

Follow this matchup

Get a note when Christopher Ward Twelve X Black Shadow vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

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 Twelve X Black Shadow

Owners widely praise the Christopher Ward Twelve X Black Shadow's impressive finishing for its price point and the quality of its bracelet. Some owners, however, feel the $4,865 price is high for the brand, while others argue it offers strong specifications for the money. Reviewers note the skeletonized COSC-certified SH21 movement provides a 120-hour power reserve, but legibility suffers due to the skeletonization and the watch's increased thickness is noticeable. One owner reported sharp edges on bracelet links and unfinished clasp surfaces, leading to a return, despite finding the case and dial appealing. On balance, owners and reviewers rate the Christopher Ward Twelve X Black Shadow highly for its finishing and value, with the skeletonized movement being a key draw.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.