(THELOCAL.CH) — A platinum wristwatch owned by British rock guitarist Eric Clapton sold for 3.4 million francs ($3.6 million) at a Geneva auction on Monday.

The rare Patek Philippe watch with a perpetual calendar manufactured in 1987 was sold to an anonymous Asian bidder by Christie’s at the Hôtel des Bergues.

The timepiece, described as a “synonym of style and mechanical elegance” by Aurel Bacs, head of Christie’s international watch department, was valued at between 2.5 million and four million francs.

It was made in 1987, one of only two produced of platinum to a design first introduced in 1951.

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