Side by side

Christopher Ward C1 Moonphase 40vsTissot PRX UFO Robot Grendizer 50th Anniversary

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

C1 Moonphase 40
Christopher WardC1 Moonphase 40
MSRP $3,050
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Christopher Ward C1 Moonphase 40

Owners widely praise the Christopher Ward C1 Moonphase 40 for its captivating aventurine dial and photorealistic, luminescent moon, with many receiving compliments and finding it a stylish, lightweight, and comfortable daily wear. The in-house Calibre JJ04 module's 128-year moon tracking is a notable feature. However, multiple owners find the lack of dial indices and bezel markings, along with unlumed hands, makes precise time-telling difficult, with some describing it as more of a jewelry piece than a functional timepiece. One owner experienced a movement issue requiring warranty repair within the first year, and another noted frustration with customer service. The 40.5mm case size is considered sporty by some, and the design is described as "shouty" by a few. On balance, owners highly rate the Christopher Ward C1 Moonphase 40 for its stunning moonphase display and aesthetic appeal at its price point, despite legibility concerns.

From video reviewers

The aventurine dial and Globolight lume are praised for their realistic starry night effect. The 3 ATM water resistance is a significant limitation.

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.

At a glance

17 of 29 specs differ
Diameter
C1 Moonphase 4047.9mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
C1 Moonphase 4038h
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
C1 Moonphase 4030m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
C1 Moonphase 40$3,050
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

7 specs
Category
Dress
Diameter
47.9mm
40mm
Thickness
13.3mm
10.93mm
Lug-to-Lug
47.9mm
39.5mm
Lug Width
20mm
12mm
Finish
Brushed + Polished
Brushed and polished
Water Resistance
30m
100m

Crystal & Dial

4 specs
AR Coating
Underside
Yes
Dial Color
Blue
Black
Indices
Applied
Indexes
Lume
SLN X1 WL C1
Super-LumiNova ®

Movement

5 specs
Caliber
Sellita SW220-1
Tissot Powermatic 80
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
80h
Jewels
26
25
Complications
Moonphase, Day-date
None

Pricing

1 specs
MSRP
$3,050
$1,100
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