Side by side

Seiko Essentials AutomaticvsUndone The Undone Slim 4 9mm

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 Essentials Automatic

Owners widely appreciate the Seiko Essentials Automatic for its attractive design and value, with one owner calling the green sunray dial beautiful and reliable after a year. Some users find the 41.2mm case wears smaller than expected. One owner notes the orange stripe on the stopwatch button can expand and fall off in heat. Overall, owners rate the Seiko Essentials Automatic highly for its attractive design and value at the price point.

Undone The Undone Slim 4 9mm

The 4.9mm case thickness is the strongest strength cited. No shared weakness was identified.

At a glance

13 of 29 specs differ
Diameter
Essentials Automatic41.2mm
The Undone Slim 4 9mm37mm
Power Reserve
Essentials Automatic41h
The Undone Slim 4 9mm
Water Resistance
Essentials Automatic100m
The Undone Slim 4 9mm30m
MSRP
Essentials Automatic$315
The Undone Slim 4 9mm$295

Full specifications

Case

7 specs
Category
Dress
Diameter
41.2mm
37mm
Thickness
11.8mm
4.9mm
Lug-to-Lug
48.5mm
0mm
Lug Width
20mm
0mm
Material
Stainless Steel
Water Resistance
100m
30m

Crystal & Dial

2 specs
Crystal
Hardlex
Sapphire
Dial Color

Movement

3 specs
Caliber
Seiko 4R35
Ronda 1062
Power Reserve
41h
0h
Jewels
23
0

Pricing

1 specs
MSRP
$315
$295
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Follow this matchup

Get a note when Seiko Essentials Automatic vs Undone The Undone Slim 4 9mm gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.