Which is cheaper, the Naga Watches Opera or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $917 for the Naga Watches Opera — a $694 gap before any retailer discounting.

Which is bigger, the Naga Watches Opera or the Sheffield 1A?

The Sheffield 1A wears larger at 40mm versus 39mm for the Naga Watches Opera — a 1mm difference across the dial.

Which has better water resistance, the Naga Watches Opera or the Sheffield 1A?

The Sheffield 1A is rated to 200m versus 100m for the Naga Watches Opera.

What movement does the Naga Watches Opera run compared to the Sheffield 1A?

Both watches run automatic movements — the Naga Watches Opera uses the Miyota 9039 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Naga Watches OperavsSheffield 1A

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

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Naga Watches Opera

naga-opera-39-lapislazuli

MSRP $917

Sheffield 1A

diver-1a-40mm-white

MSRP $223

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Buy used on eBay ↗

Buy from Sheffield ↗

Buy used on eBay ↗

At a glance

10 of 29 specs differ

Diameter

Opera39mm

1A40mm

Power Reserve

Opera—

1A—

Water Resistance

Opera100m

1A200m

MSRP

Opera$917

1A$223

Full specifications

Case

6 specs

Crystal & Dial

2 specs

Dial Color

Lapislazuli

White/Blue

Lume

None

Swiss blue lume

Movement

1 specs

Caliber

Miyota 9039

Seiko NH35A

Pricing

1 specs

MSRP

—

$223

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Naga Watches OperavsSheffield 1A

At a glance

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