Side by side

Seiko Presage Sharp Edged SeriesvsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Presage Sharp Edged Series
SeikoPresage Sharp Edged Series
MSRP $1,100
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

10 of 29 specs differ
Diameter
Presage Sharp Edged Series40.2mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
Presage Sharp Edged Series45h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
Presage Sharp Edged Series100m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
Presage Sharp Edged Series$1,100
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

4 specs
Diameter
40.2mm
40mm
Thickness
12.2mm
10.93mm
Lug-to-Lug
47.4mm
39.5mm
Lug Width
20mm
12mm

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Yes
Indices
Applied
Indexes
Lume
LumiBrite on hands and index(es)
Super-LumiNova ®

Movement

3 specs
Caliber
6R21
Powermatic 80
Power Reserve
45h
80h
Jewels
29
25

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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.

Seiko Presage Sharp Edged Series

The Seiko Presage Sharp Edged Series is widely lauded for its sharp, angular case design and the intricate finishing of its dials, often featuring traditional Japanese motifs like the Asanoha pattern. Owners and reviewers consistently highlight the beautiful interplay of polished and hairline finishes on the case and bracelet, the use of sapphire crystals, and a robust 100m water resistance. The collection is powered by reliable in-house automatic movements, with many models featuring the 6R35 movement offering a 70-hour power reserve. Some specific models are noted for their refined finishing and updated case facets, while the 24-hour sub-dial on certain variants is considered a niche complication. Overall, owners and reviewers rate the Seiko Presage Sharp Edged Series highly for its striking design and quality finishing at its price point.

Tissot PRX UFO Robot Grendizer 50th Anniversary

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, and is the first 40mm PRX to omit the date. Owners widely report huge demand, with all 1975 units selling out quickly. The packaging and watch box are described as "dope" and "insane," with one commenter stating the packing alone is "worth the buy." The watch retains the familiar 40mm case, Powermatic 80 movement with 80-hour power reserve, and integrated bracelet. 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 Grendizer graphic is less prominent in person than in photos, and the watch has a ghost date position. The Tissot PRX UFO Robot Grendizer 50th Anniversary retails for US$825 / CHF 795.

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