Watch Almanac
Seiko

King Seiko KSK

Ref. SJE089

Case diameter
38.6 mm
Manufacturer spec
Lug-to-lug
45.8 mm
Manufacturer spec
Thickness
10.7 mm
Manufacturer spec
Lug width
19 mm
Manufacturer spec

Retail price $3,300 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 45.8 mm

How the King Seiko KSK wears

Its lugs add 7.2 mm to the 38.6 mm case, close to the 7.1 mm typical across the almanac, so its diameter is a fair guide to how it wears.

On our fit model it sits best on wrists from 6.5" to 7.75" (16.5–19.7 cm); below 6.5" the lugs start to reach the edge of the wrist.

At 10.7 mm thick it is slimmer than 52% of the 56 other dress watches we've measured, so it slides under a cuff more easily than most.

Its 19 mm lug width is one of the most common strap sizes; 21 other watches here share it, so aftermarket straps are easy to find.

Will the King Seiko KSK fit your wrist?

With a 45.8 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

WristFlat width (est.)Fit
6"47.2 mmSnug, lugs near the edge
6.5"51.2 mmIdeal fit
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmWears small

Specifications

Reference
SJE089
Collection
King Seiko
Status
In production
Case material
stainless steel
Crystal
box-shaped sapphire
Water resistance
50 m
Bezel
polished steel
Dial
silver-white
Strap / bracelet
stainless steel bracelet, deployment clasp
Weight
130 g
Style
Dress, Everyday

Movement

Caliber
Seiko 6L35
Type
automatic
Power reserve
45 hours
Jewels
26
Accuracy
+15/-10 s/day

Takes 19 mm straps. See other 19 mm watches and straps.

More King Seiko references

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 19 mm lug width

All 19 mm watches

These take the same straps as the King Seiko KSK.

Sources