Representing a combination of two popular Patek Philippe complications, the self-winding flyback chronograph with Annual Calendar, Reference 5905, comes in a new rose gold version with a sunburst blue dial – a modern and elegant color accentuating the timeless style of this flagship model. The patented Annual Calendar automatically takes into account 30- and 31-day months, thus requiring only one correction per year, at the end of February. The rose gold case is distinguished by its sophisticated construction, with a concave bezel and hollowed flanks.

Sunburst blue with gold applied faceted baton-style hour markers. Rose gold. Diameter: 42 mm. Height: 14.03 mm. Water-resistant to 30 m. Sapphire crystal case back. Alligator leather with square scales, hand-stitched, shiny dark blue. Prong buckle. Flyback chronograph. Central chronograph hand. 60-minute counter. Annual Calendar. Day, date, month and day/night indication displayed in apertures.

Flyback chronograph. Central chronograph hand. 60-minute counter. Annual Calendar. Day, date, month and day/night indication displayed in apertures. Diameter: 33 mm. Thickness: 7.68 mm. Number of parts: 402. Jewels: 37. Power reserve: min. 45 hours - max. 55 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax^®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Spiromax^®. Hallmark: Patek Philippe Seal.