Brand:    Patek PhilippeModel Name:    Patek Philippe Complications Annual Calendar Platinum Watch 5905 Box PapersModel Number:    5905P – 001Gender:    Men’sMovement:    Automatic self-winding Annual Calendar flyback chronograph movement.Jewels:    37Caliber:    CH 28-520 IRM QA 24HCase:    Platinum case 42.0 mm in diameter. Exhibition sapphire crystal case back.Bezel:    Platinum bezel.Crystal:    Scratch resistant sapphire crystal.Dial:    Blue dial with applied white gold baton hour markers. White gold epee hands. Annual calendar complication displaying the Day, Date & Month through windows located beneath the 10, 12 and 2 o’clock positions. Chronograph sub-dial at the 6 o’clock position.Bracelet:    Black leather strap with platinum tang buckle.Condition:    Excellent conditionEngravings:    NoneBox & Papers:    Patek box and papers.Working Condition:    Timed to precision on witschi watch expert timing machine. Running strong and keeping the accurate time.Authenticity:    100% authenticWarranty:    The watch is covered by JD Watches 24-month warranty