5905/1A FLYBACK CHRONOGRAPH, ANNUAL CALENDAR. INTRODUCTION 5905/1A - COMPLICATIONS SELF-WINDING Available for the first time in steel, the Reference 5905 self-winding flyback chronograph with Annual Calendar radiates a resolutely sporty look. The rhythmic dial features an elegant and casual "sunburst" olive green color. The integrated bracelet is enhanced by contrasting polished and satin finishes. Thanks to the vertical disk-type clutch, the central chronograph seconds hand can be used as a permanent (running) seconds display. The patented Annual Calendar automatically takes account of 30- and 31-day months, requiring only one correction per year, on March 1st. WATCH Self-winding mechanical movement. Caliber CH 28‑520 QA 24H. Flyback Chronograph. Central chronograph hand and 60-minute counter. Annual Calendar. Day, date, month and day/night indication displayed in apertures. DIAL 1 2 3 ADD TO MY WISHLIST REMOVE FROM WISHLIST INSTRUCTION FOR USE PRINTABLE VERSION SHARE ANNUAL CALENDAR CHRONOGRAPH AUTHORIZED RETAILERS 1 2 3 4 5 OTHER VERSIONS 5905/1A-001 Stainless Steel 5905P-001 Platinum 5905R-001 Rose Gold CALIBER CH 28-520 QA 24H SELF-WINDING FRONT BACK Flyback chronograph. Central chronograph hand. 60-minute counter. Annual Calendar. Day, date, month and day/night indication displayed in apertures. Diameter: 33 mm. Height: 7.68 mm. 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. PATEK PHILIPPE SEAL OTHER MODELS 5930G-010 White Gold 5961P-001 Platinum PRESS RELEASE THREE NEW VERSIONS OF CHRONOGRAPHS The Manufacture is expanding its vast selection of chronographs by unveiling three variations of the 5204, 5905 and 5930 models that illustrate its expertise in the field of complications, particularly in the measurement of short times. VIEW THE PRESS RELEASE COLLECTION COMPANY OTHERS RETAIL SERVICES CONTACT FOLLOW US SITE MAP [ LEGAL NOTICES ] - © 2021 PATEK PHILIPPE SA We use cookies to deliver website functionality and analytics as described in our cookie policy and to ensure that we give you the best experience on our website. By continuing to use our website without changing the settings, you are agreeing to our use of cookies. OK REJECT