Which is cheaper, the Lum-Tec Eclipse or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $695 for the Lum-Tec Eclipse — a $472 gap before any retailer discounting.

Which is bigger, the Lum-Tec Eclipse or the Sheffield 1A?

The Lum-Tec Eclipse wears larger at 42mm versus 40mm for the Sheffield 1A — a 2mm difference across the dial.

Which has better water resistance, the Lum-Tec Eclipse or the Sheffield 1A?

The Sheffield 1A is rated to 200m versus 101m for the Lum-Tec Eclipse.

What movement does the Lum-Tec Eclipse run compared to the Sheffield 1A?

Both watches run automatic movements — the Lum-Tec Eclipse uses the Miyota 9039 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Lum-Tec EclipsevsSheffield 1A

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

Add a watch

Lum-Tec Eclipse

eclipse-e6

MSRP $695

Sheffield 1A

diver-1a-40mm-white

MSRP $223

At a glance

12 of 29 specs differ

Diameter

Eclipse42mm

1A40mm

Power Reserve

Eclipse40h

1A—

Water Resistance

Eclipse101m

1A200m

MSRP

Eclipse$695

1A$223

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

White/Blue

Lume

None

Swiss blue lume

Movement

2 specs

Caliber

Miyota 9039

Seiko NH35A

Power Reserve

40h

—

Pricing

1 specs

MSRP

$695

$223

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Lum-Tec EclipsevsSheffield 1A

At a glance

Full specifications

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