Side by side

Seiko Prospex SPEEDTIMERvsUndone 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 SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER's design, with specific mentions of its beautiful ice blue sundial and compact 39mm case size, which some note wears smaller than its specifications due to a short lug-to-lug distance. Reviewers highlight its racing-inspired aesthetic and versatility, with one owner finding the 39mm solar model a sturdy and reliable everyday watch with 100m water resistance. However, some owners question the value proposition, citing the $700 price for a solar quartz model and a thickness of 13mm, while others expressed a preference for automatic movements. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER's attractive vintage-inspired design and compact wearability, though some debate its value and thickness for a solar quartz chronograph.

From video reviewers

The solar-powered chronograph movement is a key strength. The bracelet finishing is a potential area for improvement. Reviewers are split on whether the aesthetic successfully revives the spirit of the original "Pogue."

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

14 of 29 specs differ
Diameter
Prospex SPEEDTIMER41.4mm
Calavera Neón40mm
Power Reserve
Prospex SPEEDTIMER
Calavera Neón
Water Resistance
Prospex SPEEDTIMER100m
Calavera Neón30m
MSRP
Prospex SPEEDTIMER$750
Calavera Neón$365

Full specifications

Case

6 specs
Category
Chronograph
Diameter
41.4mm
40mm
Thickness
13mm
0mm
Lug-to-Lug
45.9mm
0mm
Lug Width
21mm
0mm
Water Resistance
100m
30m

Crystal & Dial

5 specs
Crystal
Sapphire
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lume
LumiBrite on hands and index(es)
None

Movement

2 specs
Caliber
Seiko V192
Seiko VK64
Power Reserve
0h

Pricing

1 specs
MSRP
$750
$365
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