Seiko Monster SRP313J1vsYema Superman Dato CMM.10
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
Monster SRP313J1
Superman Dato CMM.10
Diameter
42mm
39.5mm
Thickness
n/a
11.8mm
Water Resistance
200m
300m
highest
MSRP
$450
lowest
$1,777
Movement
Seiko 4R36
Yema CMM.10
Case
7 specsCrystal & Dial
4 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Seiko Monster SRP313J1 is praised for its updated 4R36 movement offering hacking and hand-winding, and its bright LumiBrite lume. One owner notes their watch runs at +480 seconds per day. Another owner finds the "teeth indices" of second-generation Monsters more fitting to the "monstrous" aesthetic, considering the SRP313J1 sleeker. On balance, owners and reviewers find the Seiko Monster SRP313J1 appealing for its modern movement features and strong lume, though aesthetic preferences vary.
Owners report accuracy ranging from -3 to +5/-3 seconds per day. One owner notes the bezel lock reduces fidget factor, while another reviewer considers the mechanism flimsy. The Yema Superman Dato CMM.10 offers excellent value at $1,790, featuring a distinct fishscale bracelet and a customized in-house CMM.10 movement with a 70-hour power reserve. Overall, owners rate the Yema Superman Dato CMM.10 highly for its value and in-house movement.
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