Side by side

Seiko 5 Sports SNXS seriesvsUndone Calavera Neón

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

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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.

Seiko 5 Sports SNXS series

Owners widely praise the Seiko 5 Sports SNXS series for its attractive sunburst dials, vintage aesthetic, and excellent value, with many highlighting its comfortable wearability. Reviewers and owners consistently flag the stock bracelet as a significant weakness, often described as jangly, hair-pulling, and difficult to adjust, with a flimsy clasp. The Hardlex crystal is noted as being prone to scratching, and the caseback is described as thick, contributing to a bulky appearance. Accuracy with the movement is reported to be variable, ranging from +/- 1-2 seconds per day to +/- 20 seconds or more, and the movement itself lacks hacking and hand-winding. On balance, owners and reviewers rate the Seiko 5 Sports SNXS series highly for its stunning dials and value, despite significant criticisms of its bracelet and movement limitations.

From video reviewers

The vintage-inspired design and compact case size are praised. The price increase over the previous generation is a point of contention.

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

15 of 29 specs differ
Diameter
5 Sports SNXS series37.4mm
Calavera Neón40mm
Power Reserve
5 Sports SNXS series41h
Calavera Neón
Water Resistance
5 Sports SNXS series100m
Calavera Neón30m
MSRP
5 Sports SNXS series$415
Calavera Neón$365

Full specifications

Case

6 specs
Category
Sport
Diameter
37.4mm
40mm
Thickness
12.5mm
0mm
Lug-to-Lug
44.7mm
0mm
Lug Width
18mm
0mm
Water Resistance
100m
30m

Crystal & Dial

4 specs
Crystal
Hardlex
Crystal Shape
Curved
Dial Color
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
Seiko 4R36
Seiko VK64
Type
Automatic
Quartz
Power Reserve
41h
Jewels
24
0

Pricing

1 specs
MSRP
$415
$365
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