Side by side

Sheffield GMTvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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GMT
SheffieldGMT
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
SeikoProspex Marinemaster Marinemaster 1965 Heritage Diver's Watch
MSRP $2,800
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Buy used on eBay ↗
Buy from Seiko ↗
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At a glance

12 of 29 specs differ
Diameter
GMT40mm
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Power Reserve
GMT—
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Water Resistance
GMT200m
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
MSRP
GMT—
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

4 specs
Category
GMT
Diver
Diameter
40mm
39.5mm
Thickness
13mm
12.3mm
Lug-to-Lug
48mm
47.2mm

Crystal & Dial

4 specs
Crystal 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 specs
Caliber
Seiko NH34
6L37
Power Reserve
—
45h
Jewels
25
26

Pricing

1 specs
MSRP
—
$2,800
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