Which is cheaper, the Omnis ERA or the Sheffield 1A 40mm?

At MSRP the Sheffield 1A 40mm is the cheaper of the two at $228, against $583 for the Omnis ERA — a $355 gap before any retailer discounting.

Which is bigger, the Omnis ERA or the Sheffield 1A 40mm?

The Omnis ERA wears larger at 41.5mm versus 40mm for the Sheffield 1A 40mm — a 1.5mm difference across the dial.

Which has better water resistance, the Omnis ERA or the Sheffield 1A 40mm?

The Sheffield 1A 40mm is rated to 200m versus 50m for the Omnis ERA.

What movement does the Omnis ERA run compared to the Sheffield 1A 40mm?

Both watches run automatic movements — the Omnis ERA uses the Miyota 8215 and the Sheffield 1A 40mm uses the Seiko NH35.

Side by side

Omnis ERAvsSheffield 1A 40mm

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

MSRP $583

MSRP $228

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At a glance

8 of 29 specs differ

Diameter

ERA41.5mm

1A 40mm40mm

Power Reserve

ERA48h

1A 40mm—

Water Resistance

ERA50m

1A 40mm200m

MSRP

ERA$583

1A 40mm$228

Full specifications

Case

4 specs

Diameter

41.5mm

40mm

Thickness

12mm

13mm

Lug-to-Lug

—

48mm

Water Resistance

50m

200m

Crystal & Dial

1 specs

Dial Color

Meteorite

—

Movement

2 specs

Caliber

Miyota 8215

Seiko NH35

Power Reserve

48h

Pricing

1 specs

MSRP

$583

$228

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Omnis ERAvsSheffield 1A 40mm

At a glance

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