Side by side

Christopher Ward The C12 LocovsSeiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

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

At a glance

17 of 29 specs differ
Diameter
The C12 Loco47.5mm
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation39.5mm
Power Reserve
The C12 Loco144h
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation45h
Water Resistance
The C12 Loco30m
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation200m
MSRP
The C12 Loco$5,460
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation$2,800

Full specifications

Case

7 specs
Category
Diver
Diameter
47.5mm
39.5mm
Thickness
13.7mm
12.3mm
Lug-to-Lug
47.5mm
47.2mm
Lug Width
25mm
20mm
Finish
Brushed + Polished + Sandblasted
Brushed and polished
Water Resistance
30m
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
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
6L37
Beat Rate
4 vph
28,800 vph
Power Reserve
144h
45h
Jewels
29
26
Complications
Moonphase, Day-date, Date
None

Pricing

1 specs
MSRP
$5,460
$2,800

Follow this matchup

Get a note when Christopher Ward The C12 Loco vs Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation 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 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 Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

The Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation is noted for its refined, slimmed-down 39.5mm stainless steel case with a "super hard" coating and a box-shaped sapphire crystal. It offers 200 meters of water resistance and is powered by the slim Caliber 6L37 automatic movement, which has a 46-hour power reserve and an accuracy rating of -10/+15 seconds per day. Reviewers highlight its wearability and functionality as a dive watch, with one noting it as Seiko's thinnest diver ever at 12.3mm. However, concerns are raised about Seiko's continued reliance on the 62MAS design, with one reviewer wishing the Marinemaster remained a separate line, and the bracelet's end-links appearing mismatched in initial images. Its price of A$4,650 is considered high given its specifications compared to competitors.

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.