Side by side

Seiko Prospex RotocallvsUndone Calavera Neón

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

What people say

Owners + reviewers, side by side

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

Seiko Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

Undone Calavera Neón

The dial's vibrant colors under UV light are a standout feature. The watch uses a Seiko VK61 or TMI VK64 mechanical-quartz hybrid flyback chronograph movement.

At a glance

11 of 29 specs differ
Diameter
Prospex Rotocall37mm
Calavera Neón40mm
Power Reserve
Prospex Rotocall
Calavera Neón
Water Resistance
Prospex Rotocall100m
Calavera Neón30m
MSRP
Prospex Rotocall$550
Calavera Neón$365

Full specifications

Case

6 specs
Category
Sport
Diameter
37mm
40mm
Thickness
10.6mm
0mm
Lug-to-Lug
43.5mm
0mm
Lug Width
20mm
0mm
Water Resistance
100m
30m

Crystal & Dial

2 specs
Crystal
Hardlex
Dial Color

Movement

2 specs
Caliber
Seiko A824
Seiko VK64
Power Reserve
0h

Pricing

1 specs
MSRP
$550
$365
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