Side by side
Sheffield 1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no datevsSeiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation
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 diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date40mm
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation39.5mm
Power Reserve
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date—
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation45h
Water Resistance
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date200m
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation200m
MSRP
1A diver ~40mm 3-hand, Arabic numerals (12/3/6/9), no date$238
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation$2,800
Full specifications
Case
3 specsDiameter
40mm
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
White/Blue
Black
Lume
Swiss blue lume
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Seiko NH35A
6L37
Power Reserve
—
45h
Jewels
25
26
Pricing
1 specsMSRP
$238
$2,800
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