Timeline  /  The first automatic chronometer with date
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.

The need
An everyday watch that showed the date at a glance and could be trusted to keep time.
Made by
Rolex, for its fortieth anniversary. Reference 4467.
What was new
Not the date window itself but the combination: the sealed Oyster case, the self-winding rotor, a certified chronometer rate and a date at three o’clock, in one watch.
Worth knowing
It came on a new bracelet later named the Jubilee. The date moved over slowly around midnight; the instant change arrived about ten years later. The model has been in production ever since.

Historian’s noteNot the first wristwatch with a date: Movado showed one around 1915 and a date window at three was in use by the early 1930s.

SourcesRolex

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