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Tissot PRX UFO Robot Grendizer 50th AnniversaryvsVaer Calendar Field

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
Calendar Field
VaerCalendar Field
MSRP $189

At a glance

13 of 29 specs differ
Diameter
PRX UFO Robot Grendizer 50th Anniversary40mm
Calendar Field36mm
Power Reserve
PRX UFO Robot Grendizer 50th Anniversary80h
Calendar Field40h
Water Resistance
PRX UFO Robot Grendizer 50th Anniversary100m
Calendar Field100m
MSRP
PRX UFO Robot Grendizer 50th Anniversary$1,100
Calendar Field$189

Full specifications

Case

6 specs
Category
Dress
Field
Diameter
40mm
36mm
Thickness
10.93mm
8.4mm
Lug-to-Lug
39.5mm
43mm
Lug Width
12mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Indices
Indexes
Applied
Lume
Super-LumiNova ®
None

Movement

3 specs
Caliber
Powermatic 80
Miyota 2035
Type
Automatic
Quartz
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$1,100
$189

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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.

Vaer Calendar Field

Owners widely praise the Vaer Calendar Field for its excellent value, citing its clean WWII-inspired dial, thin 8.5mm to 9.5mm case, sapphire crystal, and 100m water resistance. The dial and hand design are consistently highlighted as phenomenal, with case finishing described as next-level for the price, featuring nice brushing. Some owners note the second hand does not perfectly align with markers, and the stock silicone strap attracts lint. One owner found the lume only serviceable and wished the date window was brighter. On balance, owners rate the Vaer Calendar Field highly for its exceptional dial design and case finishing at its price point.

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