Side by side

Boldr BOLDR x NitecorevsTissot PRX UFO Robot Grendizer 50th Anniversary

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

BOLDR x Nitecore
BoldrBOLDR x Nitecore
MSRP $449
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

13 of 29 specs differ
Diameter
BOLDR x Nitecore38mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
BOLDR x Nitecore40h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
BOLDR x Nitecore200m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
BOLDR x Nitecore$449
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
38mm
40mm
Thickness
12.8mm
10.93mm
Lug-to-Lug
44mm
39.5mm
Lug Width
20mm
12mm
Material
Titanium
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
Dial Color
The Kraken by BOLDR x Nitecore
Black
Indices
Applied
Indexes
Lume
Super-LumiNova
Super-LumiNova ®

Movement

2 specs
Caliber
Seiko NH35A
Powermatic 80
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$449
$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.

BOLDR x Nitecore

BOLDR x Nitecore is widely praised for its lightweight 38mm PVD titanium case, excellent legibility, and perfect sizing. Owners and reviewers highlight the unique, topographical map-inspired dial offering fantastic depth, complemented by color-matched Old-Radium C3 lume and subtle branding. The watch is described as durable and powerfully lumed, with the included Nitecore TIKI torch capable of boosting its glow. On balance, owners and reviewers rate the BOLDR x Nitecore highly for its exceptional lume and distinctive 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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