3049. 3049Y Patek Philippe. A fine 18K gold automatic perpetual calendar wristwatch with moon phase Patek Philippe. A fine 18K (750) yellow gold wristwatch perpetual calendar and moon phase automatic movement Model: Grand Complications Perpetual Calendar Reference: 5140J-001 Date: Purchased April 2008 Movement: 27-jewel Cal.240Q automatic, adjusted to heat, cold, isochronism and 5 positions, stamped with the Seal of Geneva, Gyromax balance, 22K gold micro-rotor, No.3677372 Dial: Silvered, applied 18K gold pointed baton hour markers, dot outer minute markers, subsidiary dials at 3, 6 and 9 indicating day combined with 24-hour display, month combined with leap year indication, and phases of the moon combined with date, gilt dagger hands Case: Brushed and polished round, solid snap on exhibition back, quick set buttons in the band at 6, 9 and 12, No.4412151 Strap/Bracelet: Black Patek Philippe alligator leather Buckle/Clasp: Signed 18K gold folding clasp Signed: Case, dial & movement Size: 37mm Weight: 73,90 + 13,13gr Accompaniments: Patek Philippe box, outer card, rotating watch support, adapter, Certificate of Origin, additional spare 18K gold caseback, quick set tool, Instructions for use booklet, brochures The 5140, introduced in 2006, was the next step in the evolution of the 3940. The design altered the case of the 3940 making it marginally bigger and adapted the dial to have greater legibility.