Side by side

Studio Underd0g Desert Sky (Gen3)vsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Desert Sky (Gen3)
Studio Underd0gDesert Sky (Gen3)
MSRP $550
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

13 of 29 specs differ
Diameter
Desert Sky (Gen3)38.5mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
Desert Sky (Gen3)40h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
Desert Sky (Gen3)
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
Desert Sky (Gen3)$550
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
38.5mm
40mm
Thickness
10.93mm
Lug-to-Lug
39.5mm
Lug Width
12mm
Water Resistance
100m

Crystal & Dial

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

Movement

2 specs
Caliber
Powermatic 80
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$550
$1,100

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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.

Studio Underd0g Desert Sky (Gen3)

Owners widely praise the Studio Underd0g Desert Sky (Gen3) for its vibrant blue dial that exhibits depth and liveliness under varying light, its fun and creative design, and its value as a mechanical chronograph. The Seagull 1901 movement provides column-wheel chronograph functionality, with one owner reporting accuracy around +6 seconds per day and satisfying chronograph pusher feel. However, the watch is criticized for a highly reflective, overly domed crystal and weak lume. Some owners find the 13.6mm thickness to be substantial. On balance, owners rate the Studio Underd0g Desert Sky (Gen3) highly for its engaging dial and value proposition as a mechanical chronograph.

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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