Side by side

Tissot PRX UFO Robot Grendizer 50th AnniversaryvsZelos Skyraider 2

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
Skyraider 2
ZelosSkyraider 2
MSRP $2,399

At a glance

15 of 29 specs differ
Diameter
PRX UFO Robot Grendizer 50th Anniversary40mm
Skyraider 242mm
Power Reserve
PRX UFO Robot Grendizer 50th Anniversary80h
Skyraider 240h
Water Resistance
PRX UFO Robot Grendizer 50th Anniversary100m
Skyraider 250m
MSRP
PRX UFO Robot Grendizer 50th Anniversary$1,100
Skyraider 2$2,399

Full specifications

Case

7 specs
Category
Dress
Skeleton
Diameter
40mm
42mm
Thickness
10.93mm
10.5mm
Lug-to-Lug
39.5mm
48.5mm
Lug Width
12mm
22mm
Material
Stainless Steel
Mokume Gane
Water Resistance
100m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
Powermatic 80
ETA 6498-1 Élaboré
Type
Automatic
Manual
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,100
$2,399

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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.

Zelos Skyraider 2

The Zelos Skyraider 2 is praised for its value, particularly offering unique dial materials like meteorite at a fraction of luxury prices, and its bronze case is noted for a warm glow. Reviewers and owners highlight the Flieger-inspired design and the use of a manual-wind ETA 6498 movement, with BGW9 and C3 Super-LumiNova lume. Some owners find the skeletonized variant ideal for style over everyday legibility, while others note the brand's past designs have sometimes been hard to read or bulky. The Zelos Skyraider 2 is available in various materials and dial options, with prices ranging from $699 to $1,399. On balance, owners and reviewers rate the Zelos Skyraider 2 highly for its distinctive materials and design at a competitive price point.

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