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/ Rolex
Rolex
Founded 1905 · Switzerland
Recorded here
Milestones from Rolex
1926
The first waterproof wristwatch
Rolex closed the last opening in the watch case with a crown that screws down onto the case, and called the result the Oyster.
Water resistance
1931
The first free winding rotor
Rolex let the winding weight turn a full circle freely, the self-winding system nearly every automatic watch still uses.
Automatic winding
Water resistance
1945
The first automatic chronometer with date
Rolex’s Datejust of 1945 was the first self-winding, waterproof, chronometer-certified wristwatch with a date in a window.
Date
Automatic winding
Water resistance
1956
The first day-date wristwatch
The Rolex Day-Date of 1956 was the first wristwatch to show the day spelled out in full and the date, each in its own window.
Day-date
Date
Automatic winding
Water resistance
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