Side by side

Jack Mason Ellum Manual WindvsSeiko King Seiko KSK

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

Add a watch

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

What people say

Owners + reviewers, side by side

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

Jack Mason Ellum Manual Wind

The Jack Mason Ellum Manual Wind is widely praised for its elegant, mid-century inspired design, featuring a beautiful linen-textured dial and a slim, wearable 38mm case. Owners and reviewers highlight its refined aesthetic, with some specifically calling out the gold textured dial as a favorite. The Sellita SW210-1 manual-wind movement is noted for its smooth operation and accuracy, with multiple sources reporting it regulated to within ±5 seconds per day. The watch is available at a value price point, ranging from $799 to $949 across different sources. Some owners are split on the date window, with a few finding it disruptive to the dial's design, and one commenter found the logo unappealing, while others consider the dimensions and overall package a home run. Overall, owners and reviewers rate the Jack Mason Ellum Manual Wind highly for its attractive dial and slim case at the price.

Seiko King Seiko KSK

The King Seiko KSK is widely praised for its refined finishing, with owners and reviewers noting its sharp case, faceted lugs, and well-executed dial indices, often comparing its polishing favorably to Grand Seiko. Enthusiasts appreciate its slim, retro design, with some stating it wears smaller than its official size due to the cushion case and close-to-the-wrist feel. The use of the slimline Calibre 6L35 movement is seen as an upgrade, maintaining the watch's slender profile, though some owners express concern over the price point and the perceived value of the movement. Accuracy figures vary, with one owner reporting +5 to +7 seconds per day, while another notes +15/-10 seconds per day. Some owners have noted minor quality control issues such as misaligned screws or a burr on a hand. On balance, owners and reviewers rate the King Seiko KSK highly for its exceptional case and dial finishing at its price point.

At a glance

15 of 29 specs differ
Diameter
Ellum Manual Wind38mm
King Seiko KSK36.1mm
Power Reserve
Ellum Manual Wind42h
King Seiko KSK72h
Water Resistance
Ellum Manual Wind50m
King Seiko KSK100m
MSRP
Ellum Manual Wind$799
King Seiko KSK$1,900

Full specifications

Case

6 specs
Category
Dress
Diameter
38mm
36.1mm
Thickness
9mm
11.6mm
Lug-to-Lug
45mm
43mm
Lug Width
20mm
19mm
Water Resistance
50m
100m

Crystal & Dial

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

Movement

4 specs
Caliber
Sellita SW210-1
Seiko 6R51
Type
Manual
Automatic
Power Reserve
42h
72h
Jewels
0
24

Pricing

1 specs
MSRP
$799
$1,900
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.

DiscussionNot started
Adjacent matchups

People also compared

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