Which is cheaper, the Impossible Watch Company IMP Time-Only or the Sheffield 1A 38?

At MSRP the Sheffield 1A 38 is the cheaper of the two at $238, against $495 for the Impossible Watch Company IMP Time-Only — a $257 gap before any retailer discounting.

Which is bigger, the Impossible Watch Company IMP Time-Only or the Sheffield 1A 38?

The Impossible Watch Company IMP Time-Only wears larger at 38.5mm versus 38mm for the Sheffield 1A 38 — a 0.5mm difference across the dial.

Which has better water resistance, the Impossible Watch Company IMP Time-Only or the Sheffield 1A 38?

The Sheffield 1A 38 is rated to 200m versus 50m for the Impossible Watch Company IMP Time-Only.

What movement does the Impossible Watch Company IMP Time-Only run compared to the Sheffield 1A 38?

Both watches run automatic movements — the Impossible Watch Company IMP Time-Only uses the Miyota 82S0 and the Sheffield 1A 38 uses the Seiko NH35.

Side by side

Impossible Watch Company IMP Time-OnlyvsSheffield 1A 38

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

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Impossible Watch Company IMP Time-Only

MSRP $495

Sheffield 1A 38

1a-38-blue

MSRP $238

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Buy used on eBay ↗

Buy from Sheffield ↗

Buy used on eBay ↗

At a glance

10 of 29 specs differ

Diameter

IMP Time-Only38.5mm

1A 3838mm

Power Reserve

IMP Time-Only42h

1A 38—

Water Resistance

IMP Time-Only50m

1A 38200m

MSRP

IMP Time-Only$495

1A 38$238

Full specifications

Case

5 specs

Crystal & Dial

2 specs

Crystal

Sapphire

Dial Color

Salmon

Blue

Movement

2 specs

Caliber

Miyota 82S0

Seiko NH35

Power Reserve

42h

—

Pricing

1 specs

MSRP

$495

$238

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Impossible Watch Company IMP Time-OnlyvsSheffield 1A 38

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