Which is bigger, the Aera Instruments M-1 or the NOMOS Glashütte Metro date power reserve?

The Aera Instruments M-1 wears larger at 39mm versus 37mm for the NOMOS Glashütte Metro date power reserve — a 2mm difference across the dial.

Which has better water resistance, the Aera Instruments M-1 or the NOMOS Glashütte Metro date power reserve?

The Aera Instruments M-1 is rated to 100m versus 50m for the NOMOS Glashütte Metro date power reserve.

Which has a longer power reserve, the Aera Instruments M-1 or the NOMOS Glashütte Metro date power reserve?

The NOMOS Glashütte Metro date power reserve carries a 42 hours-hour power reserve against 42 hours on the Aera Instruments M-1.

What movement does the Aera Instruments M-1 run compared to the NOMOS Glashütte Metro date power reserve?

Both watches run manual movements — the Aera Instruments M-1 uses the Sellita SW216-1 and the NOMOS Glashütte Metro date power reserve uses the DUW 4401.

Side by side

Aera Instruments M-1vsNOMOS Glashütte Metro date power reserve

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

Aera Instruments M-1

NOMOS Glashütte Metro date power reserve

1101

MSRP $4,420

At a glance

18 of 29 specs differ

Diameter

M-139mm

Metro date power reserve37mm

Power Reserve

M-142h

Metro date power reserve42 hoursh

Water Resistance

M-1100m

Metro date power reserve50m

MSRP

M-1—

Metro date power reserve$4,420

Full specifications

Case

8 specs

Crystal & Dial

5 specs

Crystal Shape

Flat

—

AR Coating

Inner

—

Dial Color

Dune

White

Indices

Applied

—

Lume

Super-LumiNova

None

Movement

4 specs

Caliber

Sellita SW216-1

DUW 4401

Beat Rate

28,800 vph

21,600 vph

Power Reserve

42h

42 hoursh

Jewels

Pricing

1 specs

MSRP

—

$4,420

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