Side by side
Mark Time Watches M 4vsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
M 439mm
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition40.5mm
Power Reserve
M 4—
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition70h
Water Resistance
M 4300m
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition200m
MSRP
M 4—
Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition$1,250
Full specifications
Case
5 specsCategory
—
Diver
Diameter
39mm
40.5mm
Thickness
12.1mm
13.2mm
Lug-to-Lug
46mm
47.6mm
Water Resistance
300m
200m
Crystal & Dial
4 specsCrystal 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 specsCaliber
Miyota 9039
6R35
Power Reserve
—
70h
Jewels
25
24
Pricing
1 specsMSRP
—
$1,250
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Mark Time Watches M 4 vs Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionvsGalo Super200 Dark EditionSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionvsGalo Super200Baltic Aquascaphe ClassicvsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionGeckota Ocean-Scout Dive WatchvsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special EditionGeckota Sea-Hunter Dive WatchvsMark Time Watches M 4Mark Time Watches M 4vsWolbrook Skindiver II Professional











