Side by side

Alsta SuperautomaticvsTissot PRX UFO Robot Grendizer

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

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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.

Alsta Superautomatic

Owners and reviewers widely praise the Alsta Superautomatic's excellent retro 70s dive watch design, with a strong connection to the movie Jaws. The contrasting case finishes and dial build quality are well-regarded, and the comfortable Tropic strap is a plus. However, the watch is considered egregiously overpriced at MSRP, with some noting a Seiko NH35 movement and stamped clasp as disappointing for the price. The bezel lacks lume, and one reviewer criticized the bracelet's poor detailing and less crisp machining. The Alsta Superautomatic is seen as a fun summer piece around $500-600, oozing 70s cool. On balance, owners and reviewers rate the Alsta Superautomatic highly for its vintage-inspired design and Jaws movie connection, despite significant price concerns at MSRP.

From video reviewers

The Alsta Superautomatic offers excellent value for its price point. Reviewers noted that the lume is on par with Seiko.

Tissot PRX UFO Robot Grendizer

The Tissot PRX UFO Robot Grendizer is noted for its unique sunburst blue dial featuring an embossed Grendizer bust, which, along with the hands and indices, offers yellow-green and blue-green luminescence respectively, while the seconds hand is shaped like Grendizer's weapon. This special edition utilizes the Powermatic 80 movement, providing an 80-hour power reserve, and comes in distinctive Spazer spaceship packaging. Reviewers suggest the €120 price premium for these thematic elements and packaging may only appeal to fans of the manga. Overall, reviewers consider the Tissot PRX UFO Robot Grendizer a clever, niche special edition that avoids excessive gimmickry, particularly appealing to manga enthusiasts.

At a glance

13 of 29 specs differ
Diameter
Superautomatic38mm
PRX UFO Robot Grendizer40mm
Power Reserve
Superautomatic38h
PRX UFO Robot Grendizer80h
Water Resistance
Superautomatic300m
PRX UFO Robot Grendizer100m
MSRP
Superautomatic$1,435
PRX UFO Robot Grendizer$950

Full specifications

Case

6 specs
Category
Dress
Diameter
38mm
40mm
Thickness
13.2mm
10.93mm
Lug-to-Lug
43mm
39.5mm
Lug Width
20mm
12mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
AR Coating
Yes
Dial Color
Black
Blue
Indices
Indexes
Lume
Super-LumiNova
Super-LumiNova ®

Movement

2 specs
Caliber
Sellita SW200-1
Tissot Powermatic 80
Power Reserve
38h
80h

Pricing

1 specs
MSRP
$1,435
$950
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