Matterhorn Watch Co. DiveMaster 300vsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
DiveMaster 300
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch
Diameter
41mm
39.5mm
Lug-to-Lug
47mm
lowest
47.2mm
Thickness
12.8mm
12.3mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
42h
45h
highest
MSRP
$401
lowest
$2,800
Movement
Miyota 9015
Seiko 6L37
Case
5 specsDiameter
41mm
39.5mm
Thickness
12.8mm
12.3mm
Lug-to-Lug
47mm
47.2mm
Lug Width
n/a
20mm
Water Resistance
300m
200m
Crystal & Dial
4 specsCrystal Shape
n/a
Box
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Black
n/a
Lume
BGW9
LumiBrite on hands, index(es) and bezel
Movement
3 specsCaliber
Miyota 9015
Seiko 6L37
Power Reserve
42h
45h
Jewels
0
26
Pricing
1 specsMSRP
$401
$2,800
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