Side by side

Matterhorn Watch Co. DiveMaster 300vsGrand Seiko SBGJ259

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
SBGJ259
Grand SeikoSBGJ259
MSRP $7,700
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Buy used on eBay ↗
Buy from Grand Seiko ↗
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At a glance

11 of 29 specs differ
Diameter
DiveMaster 30041mm
SBGJ25940mm
Power Reserve
DiveMaster 30042h
SBGJ25955h
Water Resistance
DiveMaster 300300m
SBGJ259100m
MSRP
DiveMaster 300$401
SBGJ259$7,700

Full specifications

Case

6 specs
Category
—
GMT
Diameter
41mm
40mm
Thickness
12.8mm
14mm
Lug-to-Lug
47mm
46.2mm
Lug Width
—
19mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9015
9S86
Power Reserve
42h
55h

Pricing

1 specs
MSRP
—
$7,700
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