Side by side

Echo/Neutra RivaneravsTissot PRX UFO Robot Grendizer 50th Anniversary

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

Rivanera
Echo/NeutraRivanera
MSRP $1,810
PRX UFO Robot Grendizer 50th Anniversary
TissotPRX UFO Robot Grendizer 50th Anniversary
MSRP $1,100

At a glance

17 of 29 specs differ
Diameter
Rivanera40mm
PRX UFO Robot Grendizer 50th Anniversary40mm
Power Reserve
Rivanera42hh
PRX UFO Robot Grendizer 50th Anniversary80h
Water Resistance
Rivanera30m
PRX UFO Robot Grendizer 50th Anniversary100m
MSRP
Rivanera$1,810
PRX UFO Robot Grendizer 50th Anniversary$1,100

Full specifications

Case

7 specs
Category
Dress
Thickness
5.5mm
10.93mm
Lug-to-Lug
40mm
39.5mm
Lug Width
20mm
12mm
Material
Titanium Grade 5 (sandblasted)
Stainless Steel
Finish
Polished + Sandblasted
Brushed and polished
Water Resistance
30m
100m

Crystal & Dial

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

Movement

6 specs
Caliber
Swiss ETA 7001 elaboré
Powermatic 80
Type
Manual
Automatic
Beat Rate
21,600 vph
28,800 vph
Power Reserve
42hh
80h
Jewels
17
25
Complications
Moonphase, Date
None

Pricing

1 specs
MSRP
$1,810
$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.

Echo/Neutra Rivanera

The Echo/Neutra Rivanera is widely praised for its remarkably thin 5.9mm Grade 5 titanium case, which contributes to its exceptional lightness and wearability, striking a balance between dress and everyday style. Reviewers and owners highlight its Art Deco-inspired design and the respected ETA 7001 manual-wind movement for its slimness and longevity. Impressive packaging and accessories are also noted as significant value adds for its price point. Some reviewers point out the lack of quick-release straps and the bead-blasted finish, with one owner expressing concern over the case's scratch resistance. The non-hacking movement is also a point of note for some enthusiasts. Overall, owners and reviewers highly regard the Echo/Neutra Rivanera for its exceptionally thin and lightweight titanium case and unique Art Deco aesthetic at an affordable price.

From video reviewers

The Rivanera's Grade 5 titanium case is a key selling point. Reviewers did not agree on whether the watch leans more towards a tool watch or a traditional dress watch.

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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