Aera Instruments M-1vsTimefactors PRS-57

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M-1
Aera InstrumentsM-1

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PRS-57
TimefactorsPRS-57

MSRP $1,268

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Aera Instruments M-1 at true scale

M-1

Timefactors PRS-57 at true scale

PRS-57

Diameter

39mm

40mm

Lug-to-Lug

47.6mm

46mm

lowest

Thickness

13.1mm

lowest

15mm

Water Resistance

100m

100m

Power Reserve

42h

62h

highest

MSRP

n/a

$1,268

Movement

Sellita SW216-1

Sellita SW510

Case

3 specs
Diameter
39mm
40mm
Thickness
13.14mm
15mm
Lug-to-Lug
47.6mm
46mm

Crystal & Dial

2 specs
Dial Color
Dune
n/a
Lume
Super-LumiNova
SuperLuminova X1-C3

Movement

3 specs
Caliber
Sellita SW216-1
Sellita SW510
Type
Manual
Automatic
Power Reserve
42h
62h

Pricing

1 specs
MSRP
n/a
$1,268
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