Which is cheaper, the Orient Bambino Open Heart or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $315 for the Orient Bambino Open Heart — a $92 gap before any retailer discounting.

Which is bigger, the Orient Bambino Open Heart or the Sheffield 1A?

The Orient Bambino Open Heart wears larger at 40.5mm versus 40mm for the Sheffield 1A — a 0.5mm difference across the dial.

Which has better water resistance, the Orient Bambino Open Heart or the Sheffield 1A?

The Sheffield 1A is rated to 200m versus 30m for the Orient Bambino Open Heart.

What movement does the Orient Bambino Open Heart run compared to the Sheffield 1A?

Both watches run automatic movements — the Orient Bambino Open Heart uses the FT622 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Orient Bambino Open HeartvsSheffield 1A

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

Add a watch

Orient Bambino Open Heart

ra-ag0001s30b

MSRP $315

Sheffield 1A

diver-1a-40mm-white

MSRP $223

At a glance

17 of 29 specs differ

Diameter

Bambino Open Heart40.5mm

1A40mm

Power Reserve

Bambino Open Heart40h

1A—

Water Resistance

Bambino Open Heart30m

1A200m

MSRP

Bambino Open Heart$315

1A$223

Full specifications

Case

6 specs

Crystal & Dial

6 specs

Crystal

Mineral

Sapphire

Crystal Shape

—

Flat

AR Coating

—

Inner

Dial Color

White

White/Blue

Indices

—

Applied

Lume

None

Swiss blue lume

Movement

4 specs

Caliber

FT622

Seiko NH35A

Beat Rate

21,600 vph

28,800 vph

Power Reserve

40h

—

Jewels

Pricing

1 specs

MSRP

$315

$223

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Orient Bambino Open HeartvsSheffield 1A

At a glance

Full specifications

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