Which is bigger, the Aera Instruments M-1 or the Hamilton American Classic Intra-Matic Chronograph H?

The Hamilton American Classic Intra-Matic Chronograph H wears larger at 40mm versus 39mm for the Aera Instruments M-1 — a 1mm difference across the dial.

Which has a longer power reserve, the Aera Instruments M-1 or the Hamilton American Classic Intra-Matic Chronograph H?

The Hamilton American Classic Intra-Matic Chronograph H carries a 60-hour power reserve against 42 hours on the Aera Instruments M-1.

What movement does the Aera Instruments M-1 run compared to the Hamilton American Classic Intra-Matic Chronograph H?

Both watches run manual movements — the Aera Instruments M-1 uses the Sellita SW216-1 and the Hamilton American Classic Intra-Matic Chronograph H uses the H-51.

Side by side

Aera Instruments M-1vsHamilton American Classic Intra-Matic Chronograph H

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

Aera Instruments M-1

Hamilton American Classic Intra-Matic Chronograph H

h38429110

MSRP $2,495

At a glance

9 of 29 specs differ

Diameter

M-139mm

American Classic Intra-Matic Chronograph H40mm

Power Reserve

M-142h

American Classic Intra-Matic Chronograph H60h

Water Resistance

M-1100m

American Classic Intra-Matic Chronograph H100m

MSRP

M-1—

American Classic Intra-Matic Chronograph H$2,495

Full specifications

Case

4 specs

Crystal & Dial

2 specs

Dial Color

Dune

White

Lume

Super-LumiNova

None

Movement

2 specs

Caliber

Sellita SW216-1

H-51

Power Reserve

42h

60h

Pricing

1 specs

MSRP

—

$2,495

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