Side by side
Aera Instruments M-1vsChristopher Ward The Twelve 660
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
The Twelve 66040mm
Power Reserve
M-142h
The Twelve 66045h
Water Resistance
M-1100m
The Twelve 66030m
MSRP
M-1—
The Twelve 660$1,825
Full specifications
Case
5 specsDiameter
39mm
40mm
Thickness
13.14mm
6.6mm
Lug-to-Lug
47.6mm
43.3mm
Lug Width
20mm
23.3mm
Water Resistance
100m
30m
Crystal & Dial
2 specsDial Color
Dune
Green
Lume
Super-LumiNova
None
Movement
4 specsCaliber
Sellita SW216-1
SW210-1
Beat Rate
28,800 vph
4 vph
Power Reserve
42h
45h
Jewels
25
18
Pricing
1 specsMSRP
—
$1,825
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