Side by side
Aera Instruments M-1vsSpinnaker Challenger Automatic
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
Challenger Automatic42mm
Power Reserve
M-142h
Challenger Automatic40h
Water Resistance
M-1100m
Challenger Automatic200m
MSRP
M-1—
Challenger Automatic$289
Full specifications
Case
7 specsCategory
—
Diver
Diameter
39mm
42mm
Thickness
13.14mm
19mm
Lug-to-Lug
47.6mm
49.5mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Dune
Blue
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW216-1
SII NH35A
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
—
$289
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