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In 1989, for its 150th Anniversary, Patek Philippe presented a series of eight watches, each conceived with respect for tradition and created in a limited series.
Several "Grande Complication" models were made, notably the celebrated Calibre 89 reflecting the firm's technical evolution. Amongst the other models made to commemorate this Anniversary, there is Les Impériales, reference 4761, the charming lady's lapel watch and The Officier, the famous reference 3960 which was manufactured in a limited edition of 2000 pieces in yellow gold, 150 pieces in white gold and 50 pieces in platinum. Finally, there is the handsome tonneau-shaped model, with its alluring Art Deco outline, reference 3969 which was made in a limited edition of 450 examples in pink gold and 50 in platinum. The model is a reproduction of the jump hour watch originally launched by Patek Philippe in the 1920s.
The particularity of a jump hour watch lies in its unusual mechanism and appearance. The hours are indicated by a small disc turning underneath a window. The disc rotates every time the minute hand, set within the centre of the dial, hits the full hour.