IWC. A GRAND COMPLICATION MEN'S 18K YELLOW GOLD AUTOMATIC CHRONOGRAPH, PERPETUAL CALENDAR AND MOONPHASE WRISTWATCH Model: Da Vinci Case reference: 3750 Movement: Signed, 36-Jewels, Cal. 79061, No. 2455XXX Dial: Signed, white, gilt applied batons, black outer minute division, gilt sword hands with luminous applied, blued centre seconds hand for chronograph, moonphase aperture and subsidiary for chronograph minutes at the 12 'clock position, subsidiary dial for day of the month at the 3 o'clock position, subsidiary dial for month indicator and chronograph hours at the 6 o'clock position, subsidiary dial for seconds and day of the week at the 9 o'clock position, year aperture between the 7 and 8 o'clock positions Case: Signed, polished 18K yellow gold, screw down crown, snap on back, No. 2514XXX Strap: Herschel signed baby crocograin, signed 18K yellow gold buckle Size: 39mm (39mm.)