Which is cheaper, the Sheffield 1A 40mm or the Tissot Seastar 1000?

At MSRP the Sheffield 1A 40mm is the cheaper of the two at $228, against $875 for the Tissot Seastar 1000 — a $647 gap before any retailer discounting.

Which has better water resistance, the Sheffield 1A 40mm or the Tissot Seastar 1000?

The Tissot Seastar 1000 is rated to 300m versus 200m for the Sheffield 1A 40mm.

Which has a longer power reserve, the Sheffield 1A 40mm or the Tissot Seastar 1000?

The Tissot Seastar 1000 carries a 80-hour power reserve against 40 hours on the Sheffield 1A 40mm.

What movement does the Sheffield 1A 40mm run compared to the Tissot Seastar 1000?

Both watches run automatic movements — the Sheffield 1A 40mm uses the Seiko NH35 and the Tissot Seastar 1000 uses the Powermatic 80.

Side by side

Sheffield 1A 40mmvsTissot Seastar 1000

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

Add a watch

Sheffield 1A 40mm

allsport-1-auto

MSRP $228

Tissot Seastar 1000

t1208071105100

MSRP $875

At a glance

11 of 29 specs differ

Diameter

1A 40mm40mm

Seastar 100040mm

Power Reserve

1A 40mm40h

Seastar 100080h

Water Resistance

1A 40mm200m

Seastar 1000300m

MSRP

1A 40mm$228

Seastar 1000$875

Full specifications

Case

4 specs

Crystal & Dial

4 specs

AR Coating

Inner

Yes

Dial Color

—

Graded grey-black

Indices

Applied

Indexes

Lume

None

Super-LumiNova ®

Movement

2 specs

Caliber

Seiko NH35

Powermatic 80

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$228

$875

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Sheffield 1A 40mmvsTissot Seastar 1000

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