Side by side

Aera Instruments M-1vsBoldr Expedition II

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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M-1
Aera InstrumentsM-1
Expedition II
BoldrExpedition II
MSRP $699
Buy from Aera Instruments ↗
Buy used on eBay ↗
Buy from Boldr ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
M-139mm
Expedition II41mm
Power Reserve
M-142h
Expedition II38h
Water Resistance
M-1100m
Expedition II200m
MSRP
M-1—
Expedition II$699

Full specifications

Case

5 specs
Category
—
Tool
Diameter
39mm
41mm
Thickness
13.14mm
14mm
Lug-to-Lug
47.6mm
48mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Dune
I Eiger

Movement

3 specs
Caliber
Sellita SW216-1
Sellita SW200-1
Type
Manual
Automatic
Power Reserve
42h
38h

Pricing

1 specs
MSRP
—
$699
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