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Aera Instruments M-1vsMatterhorn Watch Co. DiveMaster 300

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

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M-1
Aera InstrumentsM-1
DiveMaster 300
Matterhorn Watch Co.DiveMaster 300
MSRP $401
Buy from Aera Instruments ↗
Buy used on eBay ↗
Buy from Matterhorn Watch Co. ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
M-139mm
DiveMaster 30041mm
Power Reserve
M-142h
DiveMaster 30042h
Water Resistance
M-1100m
DiveMaster 300300m
MSRP
M-1—
DiveMaster 300$401

Full specifications

Case

5 specs
Diameter
39mm
41mm
Thickness
13.14mm
12.8mm
Lug-to-Lug
47.6mm
47mm
Lug Width
20mm
—
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Dune
Black
Lume
Super-LumiNova
BGW9

Movement

2 specs
Caliber
Sellita SW216-1
Miyota 9015
Type
Manual
Automatic

Pricing

1 specs
MSRP
—
—
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