Side by side
Sheffield 1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)vsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)38mm
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Power Reserve
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)—
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Water Resistance
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)200m
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
MSRP
1A 38 dive 38mm, 3-hand date (rotating dive bezel, perforated rubber strap)$223
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800
Full specifications
Case
3 specsDiameter
38mm
39.5mm
Thickness
12.8mm
12.3mm
Lug-to-Lug
46mm
47.2mm
Crystal & Dial
4 specsCrystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
None
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35
6L37
Power Reserve
—
45h
Jewels
25
26
Pricing
1 specsMSRP
$223
$2,800
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