Side by side

Alexander James Watches A4 Prelude 37 GMT Light BluevsSeiko 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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A4 Prelude 37 GMT Light Blue
Alexander James WatchesA4 Prelude 37 GMT Light Blue
MSRP $325
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
SeikoProspex Marinemaster Marinemaster 1965 Heritage Diver's Watch
MSRP $2,800
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At a glance

12 of 29 specs differ
Diameter
A4 Prelude 37 GMT Light Blue37.4mm
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Power Reserve
A4 Prelude 37 GMT Light Blue40h
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Water Resistance
A4 Prelude 37 GMT Light Blue200m
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
MSRP
A4 Prelude 37 GMT Light Blue$325
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

4 specs
Category
—
Diver
Diameter
37.4mm
39.5mm
Thickness
12.1mm
12.3mm
Lug-to-Lug
46mm
47.2mm

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
—
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko NH34
6L37
Power Reserve
40h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$325
$2,800
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