Which is cheaper, the Zelos Hammerhead (Tantalum LE) or the Sheffield 1A?

At MSRP the Sheffield 1A is the cheaper of the two at $223, against $1,499 for the Zelos Hammerhead (Tantalum LE) — a $1,276 gap before any retailer discounting.

Which is bigger, the Zelos Hammerhead (Tantalum LE) or the Sheffield 1A?

The Zelos Hammerhead (Tantalum LE) wears larger at 44mm versus 40mm for the Sheffield 1A — a 4mm difference across the dial.

Which has better water resistance, the Zelos Hammerhead (Tantalum LE) or the Sheffield 1A?

The Zelos Hammerhead (Tantalum LE) is rated to 300m versus 200m for the Sheffield 1A.

What movement does the Zelos Hammerhead (Tantalum LE) run compared to the Sheffield 1A?

Both watches run automatic movements — the Zelos Hammerhead (Tantalum LE) uses the Seiko NH35 and the Sheffield 1A uses the Seiko NH35A.

Side by side

Zelos Hammerhead (Tantalum LE)vsSheffield 1A

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

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Zelos Hammerhead (Tantalum LE)

hammerhead-v3-300m-tantalum-limited-edition

MSRP $1,499

Sheffield 1A

diver-1a-40mm-white

MSRP $223

At a glance

12 of 29 specs differ

Diameter

Hammerhead (Tantalum LE)44mm

1A40mm

Power Reserve

Hammerhead (Tantalum LE)40h

1A—

Water Resistance

Hammerhead (Tantalum LE)300m

1A200m

MSRP

Hammerhead (Tantalum LE)$1,499

1A$223

Full specifications

Case

6 specs

Diameter

44mm

40mm

Thickness

13mm

12.8mm

Lug-to-Lug

44mm

46mm

Lug Width

22mm

20mm

Material

Titanium

Stainless Steel

Water Resistance

300m

200m

Crystal & Dial

3 specs

Crystal

Domed Sapphire

Sapphire

Dial Color

Tantalum LE

White/Blue

Lume

None

Swiss blue lume

Movement

2 specs

Caliber

Seiko NH35

Seiko NH35A

Power Reserve

40h

—

Pricing

1 specs

MSRP

$1,499

$223

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Zelos Hammerhead (Tantalum LE)vsSheffield 1A

At a glance

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