Side by side
Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsJack Mason Strat-o-timer GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Strat-o-timer GMT42mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
Strat-o-timer GMT40h
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
Strat-o-timer GMT200m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600
Strat-o-timer GMT$1,149
Full specifications
Case
7 specsCategory
Diver
—
Diameter
42.6mm
42mm
Thickness
14.1mm
13.2mm
Lug-to-Lug
49.3mm
49mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Crystal & Dial
4 specsCrystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
—
Lume
LumiBrite on hands, index(es) and bezel
None
Movement
3 specsCaliber
8L45
Miyota 9075
Power Reserve
72h
40h
Jewels
35
25
Pricing
1 specsMSRP
$3,600
$1,149
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