百達翡麗，罕有，18k紅金酒桶型跳時腕錶，為紀念百達翡麗150週年而製，限量生產，型號3969，1989年製

To the best of our knowledge, the present example has never been offered in public before.

Reference 3969
Patek Philippe's renowned reference 3969 series was made in a limited edition of 450 examples in pink gold and 50 in platinum to celebrate the company's 150th anniversary in 1989.

Reference 3969 is inspired by 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. The tonneau-shaped case was a typical design of the 1920s and is currently reliving a nostalgic popularity.

Both jump hour models are described and illustrated in Patek Philippe Wristwatches by Martin Huber & Alan Banbery, second edition, pp. 120 & 121.