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Mark Time Watches M 4vsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean 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 Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition
SeikoProspex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition
MSRP $1,400
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At a glance

12 of 29 specs differ
Diameter
M 439mm
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm
Power Reserve
M 4—
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h
Water Resistance
M 4300m
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m
MSRP
M 4—
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400

Full specifications

Case

4 specs
Category
—
Diver
Diameter
39mm
40mm
Thickness
12.1mm
13mm
Lug-to-Lug
46mm
46.4mm

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, index(es) and bezel

Movement

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

Pricing

1 specs
MSRP
—
$1,400
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