Matterhorn Watch Co. DiveMaster 300vsSeiko Prospex Sea 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 Sea 1965 Heritage Diver's Watch
Diameter
41mm
40mm
Lug-to-Lug
47mm
46.4mm
lowest
Thickness
12.8mm
lowest
13mm
Water Resistance
300m
300m
Power Reserve
42h
72h
highest
MSRP
$401
lowest
$1,300
Movement
Miyota 9015
Seiko 6R55
Case
4 specsDiameter
41mm
40mm
Thickness
12.8mm
13mm
Lug-to-Lug
47mm
46.4mm
Lug Width
n/a
20mm
Crystal & Dial
4 specsCrystal Shape
n/a
Curved
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 6R55
Power Reserve
42h
72h
Jewels
0
24
Pricing
1 specsMSRP
$401
$1,300
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