Seiko Monster Automatic 200MvsSeiko Monster
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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 Automatic 200M

Monster
Diameter
42mm
42.4mm
Lug-to-Lug
n/a
49.4mm
Thickness
n/a
13.4mm
Water Resistance
200m
200m
Power Reserve
41h
41h
MSRP
n/a
$550
Movement
Seiko 4R36
Seiko 4R36
Case
6 specsCrystal & Dial
4 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seiko Monster Automatic 200M for its excellent Lumibrite, reliable performance, and comfortable wearability, with many considering it a bargain. Reviewers and owners alike highlight the watch's robust build and iconic design elements, such as the distinctive bezel grip. Some owners note the rubber strap can be stiff or long, and one owner reported minor time adjustments every few weeks over a decade of daily wear. Overall, owners and reviewers rate the Seiko Monster Automatic 200M highly for its exceptional value and enduring appeal.
Owners widely praise the Seiko Monster for its superb lume and comfortable wearability, with reviewers noting its robust build and excellent value. The bezel action is described as smoother and more precise than some alternatives, and the inclusion of drilled lugs is a functional benefit. One owner found the 42.4mm case size perfect, while another with smaller wrists felt it was substantial. Overall, owners and reviewers rate the Seiko Monster highly for its exceptional value and reliable dive watch performance.
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