This model, Ref. 2296, is a lady's version of the larger Ref. 2442, the so-called 'banana.' This model is extremely rare, and our research has found fewer than 10 such examples to have ever come to auction.
For an archival image of this model, see Patrizzi & Patrizzi, Collecting Patek Philippe Watches, p. 47.
For a similar example of this model in yellow gold, see lot 65 in this auction.
Please call 1-800-555-5555 to order a print catalog for this sale.