Side by side
Sheffield 1AvsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
1A40mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
1A—
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch50h
Water Resistance
1A200m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
1A$223
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$2,900
Full specifications
Case
4 specsDiameter
40mm
42.6mm
Thickness
12.8mm
13.4mm
Lug-to-Lug
46mm
49.3mm
Water Resistance
200m
300m
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White/Blue
Black
Lume
Swiss blue lume
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35A
8L35
Power Reserve
—
50h
Jewels
25
26
Pricing
1 specsMSRP
$223
$2,900
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