Which is bigger, the Bremont Supermarine Chrono or the Zero West LS-1 Land Speed 1927?

The Zero West LS-1 Land Speed 1927 wears larger at 44mm versus 43mm for the Bremont Supermarine Chrono — a 1mm difference across the dial.

Which has better water resistance, the Bremont Supermarine Chrono or the Zero West LS-1 Land Speed 1927?

The Bremont Supermarine Chrono is rated to 300m versus 100m for the Zero West LS-1 Land Speed 1927.

Which has a longer power reserve, the Bremont Supermarine Chrono or the Zero West LS-1 Land Speed 1927?

The Zero West LS-1 Land Speed 1927 carries a 48-hour power reserve against 40 hours on the Bremont Supermarine Chrono.

What movement does the Bremont Supermarine Chrono run compared to the Zero West LS-1 Land Speed 1927?

Both watches run automatic movements — the Bremont Supermarine Chrono uses the BE-50AE and the Zero West LS-1 Land Speed 1927 uses the ETA 7750.

Side by side

Bremont Supermarine ChronovsZero West LS-1 Land Speed 1927

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

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Bremont Supermarine Chrono

supermarine-chrono-black

MSRP $6,850

Zero West LS-1 Land Speed 1927

ls-1-land-speed-bullhead-chronograph-1927

At a glance

9 of 29 specs differ

Diameter

Supermarine Chrono43mm

LS-1 Land Speed 192744mm

Power Reserve

Supermarine Chrono40h

LS-1 Land Speed 192748h

Water Resistance

Supermarine Chrono300m

LS-1 Land Speed 1927100m

MSRP

Supermarine Chrono$6,850

LS-1 Land Speed 1927—

Full specifications

Case

6 specs

Movement

2 specs

Caliber

BE-50AE

ETA 7750

Power Reserve

40h

48h

Pricing

1 specs

MSRP

$6,850

—

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Bremont Supermarine ChronovsZero West LS-1 Land Speed 1927

At a glance

Full specifications

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