Side by side

Seiko King Seiko KSKvsLongines MASTER COLLECTION

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
MASTER COLLECTION
LonginesMASTER COLLECTION
MSRP $2,950

At a glance

19 of 29 specs differ
Diameter
King Seiko KSK36.1mm
MASTER COLLECTION34mm
Power Reserve
King Seiko KSK72h
MASTER COLLECTION72h
Water Resistance
King Seiko KSK100m
MASTER COLLECTION30m
MSRP
King Seiko KSK$1,900
MASTER COLLECTION$2,950

Full specifications

Case

8 specs
Category
Dress
Diameter
36.1mm
34mm
Thickness
11.6mm
9.2mm
Lug-to-Lug
43mm
41.7mm
Lug Width
19mm
18mm
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$1,900
$2,950

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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 MASTER COLLECTION

The Longines Master Collection is widely praised for its excellent value and refined design, with owners and reviewers highlighting its beautiful dials, often featuring Breguet numerals and snailed subdials, and its impressive case and bracelet finishing. The collection is consistently described as traditional and dress-oriented, offering features like column-wheel chronographs and moon phases at competitive price points. However, some owners note drawbacks such as the subdial cutting off numerals, uninspiring pushers and crowns, and a lack of micro-adjustments on the bracelet for a perfect fit. Accuracy figures are not consistently reported across sources, with one owner noting a chronograph hour counter that doesn't always reset to zero. Overall, the Longines Master Collection is highly regarded by owners and reviewers for its sophisticated aesthetics and strong value proposition, particularly for its dress watch and chronograph models.

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