Rolex OYSTER PERPETUAL DAY-DATE 40, Manual

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5
USING
YOUR WATCH ROLEX
SERVICE THE HEART OF THE
DAY-DATE MODELS
OYSTER PERPETUAL
DAY-DATE
The ultimate watch of prestige,
the Oyster Perpetual Day-Date was the
first calendar wristwatch to indicate, in
addition to the date, the day of the week
spelt out in full in a window on the dial.
Available only in precious metals, it
embodies Rolex excellence and quickly
became the watch for influential people.
Its Oyster case, guaranteed waterproof
to a depth of 100 metres (330 feet),
is a paragon of robustness and elegance.
The winding crown, fitted with the
Twinlock double waterproofness system,
screws down solidly against the case.
The sapphire crystal, with a Cyclops lens
at 3 o’clock for easy reading of the date,
is virtually scratchproof.
The Oyster Perpetual Day-Date is
equipped with a self-winding mechanical
movement entirely manufactured
by Rolex.