Side by side

Christopher Ward Twelve X (Ti)vsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

Twelve X (Ti)
Christopher WardTwelve X (Ti)
MSRP $5,375

At a glance

16 of 29 specs differ
Diameter
Twelve X (Ti)46.3mm
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Power Reserve
Twelve X (Ti)120h
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Water Resistance
Twelve X (Ti)100m
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
MSRP
Twelve X (Ti)$5,375
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

8 specs
Category
Skeleton
Diver
Diameter
46.3mm
44mm
Thickness
12.3mm
13mm
Lug-to-Lug
46.3mm
49.3mm
Lug Width
25mm
20mm
Material
Titanium
Stainless Steel
Finish
Brushed + Polished + Satin + Sandblasted
Brushed and polished
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
SLN X1 BL C1
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
SH21
8L35
Beat Rate
4 vph
28,800 vph
Power Reserve
120h
50h
Complications
Moonphase
None

Pricing

1 specs
MSRP
$5,375
$3,300

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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 (Ti)

The Christopher Ward Twelve X (Ti) is praised for its exceptionally finished, lightweight titanium case and COSC-certified, skeletonized SH21 movement offering a 120-hour power reserve. Reviewers note its comfortable wearability due to the rounded case shape, despite a 12.3mm thickness, and highlight the micro-adjust clasp. Legibility is considered good for a skeletonized watch, though reduced compared to standard dials. One reviewer points out that the case chamfers may be prone to dings and the movement finishing does not reach higher-end standards. Overall, reviewers rate the Christopher Ward Twelve X (Ti) highly for its impressive case finishing and the value of its COSC-certified, in-house skeletonized movement.

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.

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