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Matterhorn Watch Co. DiveMaster 300vsSeiko Prospex Sea

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

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DiveMaster 300
Matterhorn Watch Co.DiveMaster 300
MSRP $401
Prospex Sea
SeikoProspex Sea
MSRP $1,100
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At a glance

11 of 29 specs differ
Diameter
DiveMaster 30041mm
Prospex Sea41.3mm
Power Reserve
DiveMaster 30042h
Prospex Sea72h
Water Resistance
DiveMaster 300300m
Prospex Sea300m
MSRP
DiveMaster 300$401
Prospex Sea$1,100

Full specifications

Case

5 specs
Category
—
Diver
Diameter
41mm
41.3mm
Thickness
12.8mm
12.5mm
Lug-to-Lug
47mm
48.2mm
Lug Width
—
20mm

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9015
6R55
Power Reserve
42h
72h
Jewels
25
24

Pricing

1 specs
MSRP
—
$1,100
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