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