Side by side

Tissot PRX UFO Robot GrendizervsYema Pearldiver

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

PRX UFO Robot Grendizer
TissotPRX UFO Robot Grendizer
MSRP $950
Pearldiver
YemaPearldiver
MSRP $491

At a glance

13 of 29 specs differ
Diameter
PRX UFO Robot Grendizer40mm
Pearldiver38mm
Power Reserve
PRX UFO Robot Grendizer80h
Pearldiver40h
Water Resistance
PRX UFO Robot Grendizer100m
Pearldiver100m
MSRP
PRX UFO Robot Grendizer$950
Pearldiver$491

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
40mm
38mm
Thickness
10.93mm
14mm
Lug-to-Lug
39.5mm
46mm
Lug Width
12mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
Powermatic 80
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$950
$491

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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

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.

Yema Pearldiver

Owners widely praise the Yema Pearldiver's vintage aesthetic, clean dial, and sub-40mm dimensions with short lug-to-lug, noting its in-house movement and solid build quality. Accuracy figures range from dead-on at 0 seconds per day to +2 seconds per day, though some owners have reported dead-on-arrival movements requiring returns. The bracelet clasp is described by one owner as "pretty cheap." Some find the design pedestrian and lacking uniqueness, with the faux lume color noted as too dark by one commenter. Overall, owners rate the Yema Pearldiver highly for its vintage appeal and wearable dimensions at the price.

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