Side by side
Aera Instruments M-1vsBorealis Watch Co. Estoril 300 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
M-139mm
Estoril 300 GMT41.50mm
Power Reserve
M-142h
Estoril 300 GMT40h
Water Resistance
M-1100m
Estoril 300 GMT300m
MSRP
M-1—
Estoril 300 GMT$600
Full specifications
Case
6 specsCategory
—
Diver
Diameter
39mm
41.50mm
Thickness
13.14mm
13.5mm
Lug-to-Lug
47.6mm
47mm
Lug Width
20mm
20mm
Water Resistance
100m
300m
Crystal & Dial
2 specsDial Color
Dune
Black
Lume
Super-LumiNova
BGW9
Movement
3 specsCaliber
Sellita SW216-1
Miyota 9075
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
—
$600
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