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

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $650 for the Tissot Seastar 1000 Chronograph — a $427 gap before any retailer discounting.

Which is bigger, the Sheffield 1A or the Tissot Seastar 1000 Chronograph?

The Tissot Seastar 1000 Chronograph wears larger at 45.5mm versus 40mm for the Sheffield 1A — a 5.5mm difference across the dial.

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

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

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

The Sheffield 1A runs a automatic caliber (Seiko NH35A), while the Tissot Seastar 1000 Chronograph runs a quartz.

Side by side

Sheffield 1AvsTissot Seastar 1000 Chronograph

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

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Sheffield 1A

diver-1a-40mm-white

MSRP $223

Tissot Seastar 1000 Chronograph

t1204171705103

MSRP $650

At a glance

13 of 29 specs differ

Diameter

1A40mm

Seastar 1000 Chronograph45.5mm

Power Reserve

1A—

Seastar 1000 Chronograph40h

Water Resistance

1A200m

Seastar 1000 Chronograph300m

MSRP

1A$223

Seastar 1000 Chronograph$650

Full specifications

Case

5 specs

Diameter

40mm

45.5mm

Thickness

12.8mm

12.82mm

Lug-to-Lug

46mm

45.5mm

Lug Width

20mm

22mm

Water Resistance

200m

300m

Crystal & Dial

4 specs

AR Coating

Inner

Yes

Dial Color

White/Blue

Black

Indices

Applied

Indexes

Lume

Swiss blue lume

Super-LumiNova ®

Movement

3 specs

Caliber

Seiko NH35A

—

Type

Automatic

Quartz

Power Reserve

—

40h

Pricing

1 specs

MSRP

$223

$650

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Sheffield 1AvsTissot Seastar 1000 Chronograph

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