Side by side

Christopher Ward Twelve X Black ShadowvsSeiko Prospex Sea Save the Ocean Special Edition

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

At a glance

13 of 29 specs differ
Diameter
Twelve X Black Shadow40mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
Twelve X Black Shadow120h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Twelve X Black Shadow100m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Twelve X Black Shadow$6,275
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

6 specs
Category
Skeleton
Diver
Diameter
40mm
45mm
Thickness
12.3mm
13.2mm
Lug-to-Lug
44.5mm
47.7mm
Lug Width
25mm
22mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
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
4R36
Beat Rate
4 vph
28,800 vph
Power Reserve
120h
41h
Jewels
31
24

Pricing

1 specs
MSRP
$6,275
$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 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 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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