Side by side
Aera Instruments M-1vsHalios Seaforth IV
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
M-139mm
Seaforth IV40mm
Power Reserve
M-142h
Seaforth IV40h
Water Resistance
M-1100m
Seaforth IV200m
MSRP
M-1—
Seaforth IV$765
Full specifications
Case
6 specsCategory
—
Diver
Diameter
39mm
40mm
Thickness
13.14mm
12.4mm
Lug-to-Lug
47.6mm
46.5mm
Material
Stainless Steel
Titanium
Water Resistance
100m
200m
Crystal & Dial
3 specsCrystal
Sapphire
Sapphire (double-domed)
Dial Color
Dune
Blue
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW216-1
Sellita SW200-2
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
—
$765
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