Side by side
Aera Instruments M-1vsOak & Oscar Batch Nº2
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
M-139mm
Batch Nº238mm
Power Reserve
M-142h
Batch Nº242h
Water Resistance
M-1100m
Batch Nº2100m
MSRP
M-1—
Batch Nº2$1,775
Full specifications
Case
6 specsCategory
—
Field
Diameter
39mm
38mm
Thickness
13.14mm
10.8mm
Lug-to-Lug
47.6mm
44.9mm
Material
Stainless Steel
316L Stainless Steel (navy ceramic coated)
Caseback
Solid
Solid screw-down
Crystal & Dial
3 specsCrystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Dune
Blue
Movement
5 specsCaliber
Sellita SW216-1
Modified ETA 2892A2
Type
Manual
Automatic
Beat Rate
28,800 vph
4 vph
Jewels
25
21
Complications
None
GMT, Chronograph, Date
Pricing
1 specsMSRP
—
$1,775
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