Side by side

Christopher Ward The C12 LocovsSeiko Prospex Sea Save the Ocean Special Edition

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

The C12 Loco
Christopher WardThe C12 Loco
MSRP $5,460

At a glance

16 of 29 specs differ
Diameter
The C12 Loco47.5mm
Prospex Sea Save the Ocean Special Edition45mm
Power Reserve
The C12 Loco144h
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
The C12 Loco30m
Prospex Sea Save the Ocean Special Edition200m
MSRP
The C12 Loco$5,460
Prospex Sea Save the Ocean Special Edition$625

Full specifications

Case

7 specs
Category
Diver
Diameter
47.5mm
45mm
Thickness
13.7mm
13.2mm
Lug-to-Lug
47.5mm
47.7mm
Lug Width
25mm
22mm
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
30m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
CW-003
4R36
Beat Rate
4 vph
28,800 vph
Power Reserve
144h
41h
Jewels
29
24
Complications
Moonphase, Day-date, Date
None

Pricing

1 specs
MSRP
$5,460
$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 The C12 Loco

Owners widely praise the Christopher Ward The C12 Loco for its unusual technical ambition, well-finished movement aesthetics, and value, particularly noting the dial-side floating free-sprung balance. Some owners find the mid-case design creates odd proportions, and the 30m water resistance is flagged as a limitation. The watch features a manually wound twin-barrel movement in a 41mm steel case with a 47.5mm lug-to-lug and 13.7mm thickness. Overall, owners rate the Christopher Ward The C12 Loco highly for its ambitious movement design and value at its price point.

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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