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Matterhorn Watch Co. DiveMaster 300vsSeestern S450 Ocean Star

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
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
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Buy from Seestern ↗
Buy used on eBay ↗

At a glance

15 of 29 specs differ
Diameter
DiveMaster 30041mm
S450 Ocean Star40mm
Power Reserve
DiveMaster 30042h
S450 Ocean Star41h
Water Resistance
DiveMaster 300300m
S450 Ocean Star100m
MSRP
DiveMaster 300$401
S450 Ocean Star$299

Full specifications

Case

7 specs
Category
—
Diver
Diameter
41mm
40mm
Thickness
12.8mm
12mm
Lug-to-Lug
47mm
48mm
Lug Width
—
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
White
Lume
BGW9
Tritium

Movement

5 specs
Caliber
Miyota 9015
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
—
$299
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