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 $4,750

At a glance

13 of 29 specs differ
Diameter
King Seiko KSK36.1mm
CONQUEST34mm
Power Reserve
King Seiko KSK72h
CONQUEST40h
Water Resistance
King Seiko KSK100m
CONQUEST100m
MSRP
King Seiko KSK$1,900
CONQUEST$4,750

Full specifications

Case

5 specs
Category
Dress
Diameter
36.1mm
34mm
Thickness
11.6mm
10.9mm
Lug-to-Lug
43mm
41.1mm
Lug Width
19mm
17mm

Crystal & Dial

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

Movement

3 specs
Caliber
6R51
L888.5
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,900
$4,750

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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 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

Owners widely praise the Longines CONQUEST for its versatile, aesthetically pleasing design, comfortable wearability, and excellent value, with many highlighting its high-quality finishing and smooth winding action. Reviewers and owners alike note the watch's well-wearing size and blend of vintage and modern design elements. Some owners report the polished surfaces can be prone to scratches, and multiple sources flag the bracelet's lack of micro-adjustment as a significant drawback impacting fit. Lume quality is also a recurring point of criticism, with one reviewer noting only the black dial version appears to have lumed hands. Overall, owners and reviewers consider the Longines CONQUEST a highly versatile and well-built everyday sports watch offering significant value.

From video reviewers

The elegant gold dial is a notable aspect of the Longines CONQUEST. The quartz movement may be a drawback for collectors who prefer mechanical movements. Reviewers disagree on the standout feature, with one highlighting the gold dial and the other the Blue Sunburst dial.

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