Side by side

Mark Time Watches M 4vsGrand Seiko SLGW007

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
SLGW007
Grand SeikoSLGW007
MSRP $10,000
Buy from Mark Time Watches ↗
Buy used on eBay ↗
Buy from Grand Seiko ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
M 439mm
SLGW00738.6mm
Power Reserve
M 4—
SLGW00780h
Water Resistance
M 4300m
SLGW00730m
MSRP
M 4—
SLGW007$10,000

Full specifications

Case

5 specs
Category
—
Dress
Diameter
39mm
38.6mm
Thickness
12.1mm
9.95mm
Lug-to-Lug
46mm
45mm
Water Resistance
300m
30m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
—
Black

Movement

3 specs
Caliber
Miyota 9039
9SA4
Type
Automatic
Manual
Power Reserve
—
80h

Pricing

1 specs
MSRP
—
$10,000
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