Which is cheaper, the Hamilton American Classic Intra-Matic Auto or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $1,275 for the Hamilton American Classic Intra-Matic Auto — a $1,052 gap before any retailer discounting.

Which has better water resistance, the Hamilton American Classic Intra-Matic Auto or the Sheffield 1A?

The Sheffield 1A is rated to 200m versus 50m for the Hamilton American Classic Intra-Matic Auto.

What movement does the Hamilton American Classic Intra-Matic Auto run compared to the Sheffield 1A?

Both watches run automatic movements — the Hamilton American Classic Intra-Matic Auto uses the H-10 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Hamilton American Classic Intra-Matic AutovsSheffield 1A

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

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Hamilton American Classic Intra-Matic Auto

h38425120

MSRP $1,275

Sheffield 1A

diver-1a-40mm-white

MSRP $223

At a glance

8 of 29 specs differ

Diameter

American Classic Intra-Matic Auto40mm

1A40mm

Power Reserve

American Classic Intra-Matic Auto80h

1A—

Water Resistance

American Classic Intra-Matic Auto50m

1A200m

MSRP

American Classic Intra-Matic Auto$1,275

1A$223

Full specifications

Case

3 specs

Crystal & Dial

2 specs

Dial Color

White

White/Blue

Lume

None

Swiss blue lume

Movement

2 specs

Caliber

H-10

Seiko NH35A

Power Reserve

80h

—

Pricing

1 specs

MSRP

$1,275

$223

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Hamilton American Classic Intra-Matic AutovsSheffield 1A

At a glance

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