Side by side

Fortis Flieger F-43 BicompaxvsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Flieger F-43 Bicompax
FortisFlieger F-43 Bicompax
MSRP $4,180
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

14 of 29 specs differ
Diameter
Flieger F-43 Bicompax43mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
Flieger F-43 Bicompax58h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
Flieger F-43 Bicompax200m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
Flieger F-43 Bicompax$4,180
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
43mm
40mm
Thickness
14.5mm
10.93mm
Lug-to-Lug
39.5mm
Lug Width
22mm
12mm
Water Resistance
200m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW510 BH a
Powermatic 80
Power Reserve
58h
80h
Jewels
27
25

Pricing

1 specs
MSRP
$4,180
$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.

Fortis Flieger F-43 Bicompax

Owners widely praise the Fortis Original for its tool-watch aesthetic, legibility, and robust construction, with many noting excellent lume that lasts all night and precise day/date changes at midnight. The brushed stainless steel case is well-finished, and the 38mm size is considered comfortable and well-weighted despite being smaller than modern watches. Accuracy figures range from +2 seconds/day to +8 seconds/day, and some owners compare Fortis quality favorably to Omega. However, some users find the MSRP too high compared to brands like Sinn and Damasko, and one owner reported internal parts dislodging from a limited edition model. Concerns have also been raised about stripped lug screws on B-42 models and potential parts shortages due to past bankruptcy protection filings. Overall, owners rate the Fortis Original highly for its durable construction and tool-watch functionality at a competitive price point.

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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