Side by side

Hemel HFT20vsTissot PRX UFO Robot Grendizer 50th Anniversary

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

HFT20
HemelHFT20
MSRP $450
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

13 of 29 specs differ
Diameter
HFT2042mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
HFT2040h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
HFT20100m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
HFT20$450
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

6 specs
Category
Chronograph
Dress
Diameter
42mm
40mm
Thickness
10.93mm
Lug-to-Lug
49mm
39.5mm
Lug Width
20mm
12mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

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

Movement

3 specs
Caliber
Seiko VK64
Powermatic 80
Type
Quartz
Automatic
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$450
$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.

Hemel HFT20

The Hemel HFT20 Chronograph is praised for its legible matte black dial, sapphire crystal, and the satisfying sweep of its chronograph hand, powered by the Seiko VK64 meca-quartz movement. Reviewers note its convenient wearability, with a 42mm case that wears well due to its 49mm lug-to-lug measurement, and a comfortable, well-made leather strap. However, its 16mm thickness is considered slightly more than ideal for the movement, and the chronograph minutes sub-dial does not precisely jump. Overall, reviewers find the Hemel HFT20 to be an accessible and modern interpretation of vintage designs, offering good value at $449.

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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