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Tissot PRX UFO Robot Grendizer 50th AnniversaryvsWilliam Wood Triumph Chronograph

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
Triumph Chronograph
William WoodTriumph Chronograph
MSRP $2,525

At a glance

13 of 29 specs differ
Diameter
PRX UFO Robot Grendizer 50th Anniversary40mm
Triumph Chronograph41mm
Power Reserve
PRX UFO Robot Grendizer 50th Anniversary80h
Triumph Chronograph40h
Water Resistance
PRX UFO Robot Grendizer 50th Anniversary100m
Triumph Chronograph100m
MSRP
PRX UFO Robot Grendizer 50th Anniversary$1,100
Triumph Chronograph$2,525

Full specifications

Case

6 specs
Category
Dress
Chronograph
Diameter
40mm
41mm
Thickness
10.93mm
16mm
Lug-to-Lug
39.5mm
49.5mm
Lug Width
12mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
Powermatic 80
Sellita SW510
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,100
$2,525

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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.

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.

William Wood Triumph Chronograph

The William Wood Triumph Chronograph is a Swiss-made chronograph featuring a 41mm stainless steel case and a Sellita SW510 movement. Reviewers highlight its firefighting-inspired design, including a sandwich dial, unique sub-dials, and upcycled fire hose straps. The watch has a 48-hour power reserve, though the movement is often credited with up to 56 hours. Its 16.5mm height and 49.5mm lug-to-lug measurement mean it wears large on a 7-inch wrist, and the handset is described as flat and blocky. Overall, reviewers appreciate the novel design elements and thematic execution of the William Wood Triumph Chronograph.

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