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Mark Time Watches M 4vsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

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
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition
SeikoProspex SPEEDTIMER Seiko 145th Anniversary Limited Edition
MSRP $2,500
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At a glance

13 of 29 specs differ
Diameter
M 439mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
M 4—
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
M 4300m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
M 4—
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

5 specs
Category
—
Chronograph
Diameter
39mm
42mm
Thickness
12.1mm
14.6mm
Lug-to-Lug
46mm
49.5mm
Water Resistance
300m
100m

Crystal & Dial

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

Movement

3 specs
Caliber
Miyota 9039
8R48
Power Reserve
—
45h
Jewels
25
34

Pricing

1 specs
MSRP
—
$2,500
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