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Tissot PRX UFO Robot Grendizer 50th AnniversaryvsTimefactors PRS-44

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

PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100
PRS-44
TimefactorsPRS-44
MSRP $705
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

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.

Timefactors PRS-44

Owners widely praise the Timefactors PRS for its machining and design, with many finding its 40mm sizing and short lug-to-lug distance wear well. Some owners report the lume fades faster than expected. The purchase process can be difficult due to limited availability. Overall, owners rate the Timefactors PRS highly for its machining and wearability at the price point.

At a glance

13 of 29 specs differ
Diameter
PRX UFO Robot Grendizer 50th Anniversary40mm
PRS-4442mm
Power Reserve
PRX UFO Robot Grendizer 50th Anniversary80h
PRS-44
Water Resistance
PRX UFO Robot Grendizer 50th Anniversary100m
PRS-44300m
MSRP
PRX UFO Robot Grendizer 50th Anniversary$1,100
PRS-44$705

Full specifications

Case

6 specs
Category
Dress
Diameter
40mm
42mm
Thickness
10.93mm
13mm
Lug-to-Lug
39.5mm
50mm
Lug Width
12mm
22mm
Water Resistance
100m
300m

Crystal & Dial

4 specs
AR Coating
Yes
Inner
Dial Color
Black
Indices
Indexes
Applied
Lume
Super-LumiNova ®
None

Movement

2 specs
Caliber
Tissot Powermatic 80
ETA2824
Power Reserve
80h

Pricing

1 specs
MSRP
$1,100
$705
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