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Mark Time Watches M 4vsSeiko King Seiko KSK

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

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M 4
Mark Time WatchesM 4
King Seiko KSK
SeikoKing Seiko KSK
MSRP $2,000
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At a glance

13 of 29 specs differ
Diameter
M 439mm
King Seiko KSK38.3mm
Power Reserve
M 4—
King Seiko KSK72h
Water Resistance
M 4300m
King Seiko KSK100m
MSRP
M 4—
King Seiko KSK$2,000

Full specifications

Case

5 specs
Category
—
Dress
Diameter
39mm
38.3mm
Thickness
12.1mm
11.7mm
Lug Width
20mm
19mm
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on Hands

Movement

3 specs
Caliber
Miyota 9039
6R55
Power Reserve
—
72h
Jewels
25
24

Pricing

1 specs
MSRP
—
$2,000
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All alternatives to the M 4 →All alternatives to the King Seiko KSK →
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