Side by side

Formex Field AutomaticvsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Field Automatic
FormexField Automatic
MSRP $881
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

13 of 29 specs differ
Diameter
Field Automatic40mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
Field Automatic41h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
Field Automatic150m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
Field Automatic$881
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

6 specs
Category
Field
Dress
Thickness
10.6mm
10.93mm
Lug-to-Lug
46.6mm
39.5mm
Lug Width
20mm
12mm
Material
Titanium
Stainless Steel
Water Resistance
150m
100m

Crystal & Dial

4 specs
AR Coating
Inner
Yes
Dial Color
Ash Grey
Black
Indices
Applied
Indexes
Lume
Super-LumiNova
Super-LumiNova ®

Movement

2 specs
Caliber
Sellita SW200-1
Powermatic 80
Power Reserve
41h
80h

Pricing

1 specs
MSRP
$881
$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.

Formex Field Automatic

Owners widely praise the Formex Field Automatic for its lightweight, scratch-resistant Grade 2 titanium case with a hardening treatment and its comfortable wearability, especially with quick-release straps and a carbon clasp. Reviewers and owners alike highlight the dial's legibility and depth, with one noting the Petrol Blue's great color and subtle texture. The Sellita SW200-1 movement is considered a practical choice, with one owner reporting accuracy of +1 second per day. The watch offers 150m water resistance and is seen as good value under $1000. Some owners desire a matching titanium bracelet and find the numeral typography less appealing. Overall, owners and reviewers rate the Formex Field Automatic highly for its robust, comfortable titanium construction and functional dial design at its 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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