Side by side

Tissot PRX UFO Robot Grendizer 50th AnniversaryvsLongines SPIRIT PILOT FLYBACK

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
SPIRIT PILOT FLYBACK
LonginesSPIRIT PILOT FLYBACK
MSRP $5,550

At a glance

20 of 29 specs differ
Diameter
PRX UFO Robot Grendizer 50th Anniversary40mm
SPIRIT PILOT FLYBACK39.5mm
Power Reserve
PRX UFO Robot Grendizer 50th Anniversary80h
SPIRIT PILOT FLYBACK44h
Water Resistance
PRX UFO Robot Grendizer 50th Anniversary100m
SPIRIT PILOT FLYBACK100m
MSRP
PRX UFO Robot Grendizer 50th Anniversary$1,100
SPIRIT PILOT FLYBACK$5,550

Full specifications

Case

8 specs
Category
Dress
Pilot
Diameter
40mm
39.5mm
Thickness
10.93mm
13.4mm
Lug-to-Lug
39.5mm
47.4mm
Lug Width
12mm
20mm
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
Caseback
Solid
Screw-down and transparent with sapphire crystal case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Both sides
Indices
Indexes
Applied Arabic numerals
Lume
Super-LumiNova ®
Super-LumiNova

Movement

7 specs
Caliber
Powermatic 80
L792.4
Type
Automatic
Manual
Power Reserve
80h
44h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, small seconds at 9 o'clock

Pricing

1 specs
MSRP
$1,100
$5,550

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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.

Longines SPIRIT PILOT FLYBACK

The Longines Spirit Pilot Flyback is widely praised for its refined 39.5mm case size, improved wearability, and clean dial design, incorporating enthusiast feedback by removing the five stars and date. Reviewers and owners consistently highlight its exceptional finishing, well-acting ceramic bezel, and the value it offers. The manual-winding L792.4 column-wheel chronograph movement is COSC-certified and offers a power reserve of approximately 68 to 72 hours. Some owners expressed disappointment with the removal of the five stars from the dial, and one reviewer noted that some numerals are partially cut off by the subdials. The watch is priced around $5,350 to $5,550 USD. Overall, owners and reviewers rate the Longines Spirit Pilot Flyback highly for its improved dimensions, finishing, and value proposition.

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