Side by side

Seiko King Seiko KSKvsLongines CONQUEST

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

King Seiko KSK
SeikoKing Seiko KSK
MSRP $1,900
CONQUEST
LonginesCONQUEST
MSRP $2,400

At a glance

19 of 29 specs differ
Diameter
King Seiko KSK36.1mm
CONQUEST34mm
Power Reserve
King Seiko KSK72h
CONQUEST
Water Resistance
King Seiko KSK100m
CONQUEST100m
MSRP
King Seiko KSK$1,900
CONQUEST$2,400

Full specifications

Case

7 specs
Category
Dress
Sport
Diameter
36.1mm
34mm
Thickness
11.6mm
10.9mm
Lug-to-Lug
43mm
49.1mm
Lug Width
19mm
21mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

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

Movement

6 specs
Caliber
6R51
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
72h
0h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$1,900
$2,400

Follow this matchup

Get a note when Seiko King Seiko KSK vs Longines CONQUEST gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

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.

Longines CONQUEST

The Longines Conquest is widely praised for its excellent value, high-quality finishing, and versatile, clean design, with owners frequently highlighting its comfortable wearability and smooth winding action. Reviewers note its legible dial and 300-meter water resistance, with one source specifying a 72-hour power reserve and a 5-year warranty. Criticisms include the lack of micro-adjustment on the bracelet, which some owners find leads to a poor fit, and weaker lume, though only the black dial is noted to have lumed hands. One owner points out the large crown guards may rub the wrist when typing. Overall, owners and reviewers rate the Longines Conquest highly for its exceptional build quality and aesthetic appeal at its price point.

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.

Adjacent matchups

People also compared

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