Maen Manhattan 三七vsTissot PRX UFO Robot Grendizer 50th Anniversary
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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.

Manhattan 三七

PRX UFO Robot Grendizer 50th Anniversary
Diameter
37mm
40mm
Lug-to-Lug
n/a
39.5mm
Thickness
9.3mm
lowest
10.9mm
Water Resistance
100m
100m
Power Reserve
n/a
80h
MSRP
$951
lowest
$1,100
Movement
Sellita SW200-1
Tissot Powermatic 80
Case
5 specsCrystal & Dial
4 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Maen Manhattan 三七 for its satisfying finishing quality and comfortable 37mm wearability, with one owner specifically highlighting the gemstone-like dial that changes appearance in different lighting. Reviewers note its appealing case profile and modest dimensions, though one editorial source flags an average accuracy deviation of +/- 12 seconds per day. The consensus is that owners rate the Maen Manhattan 三七 highly for its dial finishing and comfortable wearability at its price point.
The ultra-thin profile at around 7.1mm is a key characteristic. Reviewers noted the unique dial design as a standout element.
The Tissot PRX UFO Robot Grendizer 50th Anniversary is praised for its tasteful integration of anime elements onto the PRX design, featuring an engraved Grendizer bust on a sunburst blue dial with Super-LumiNova. Owners note it is the first 40mm PRX to omit the date window, and its packaging and watch box are described as exceptional. Some find the Grendizer dial less appealing than the standard waffle dial, with one owner calling it "childish," while another considers it "the best PRX." The watch retains the familiar 40mm case, Powermatic 80 movement, and integrated bracelet, retailing for CHF 795 / US$825. On balance, owners and reviewers rate the Tissot PRX UFO Robot Grendizer 50th Anniversary highly for its unique thematic execution and desirable packaging, despite some polarizing dial aesthetics.
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