Side by side
Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsSheffield 1A
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
1A40mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
1A—
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
1A200m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600
1A$223
Full specifications
Case
4 specsDiameter
42.6mm
40mm
Thickness
14.1mm
12.8mm
Lug-to-Lug
49.3mm
46mm
Water Resistance
300m
200m
Crystal & Dial
4 specsCrystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
White/Blue
Lume
LumiBrite on hands, index(es) and bezel
Swiss blue lume
Movement
3 specsCaliber
8L45
Seiko NH35A
Power Reserve
72h
—
Jewels
35
25
Pricing
1 specsMSRP
$3,600
$223
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