Model Number: 3521.80.
Movement: Mechanical (Automatic)
Number of Jewels: 25 Jewels
Features: Annual Calendar, Chronograph, Day/Date, Fixed Bezel, GMT, Luminous Hands, Month Indicator, Push/Pull Crown, Sapphire Crystal, Small Seconds Subdial, Self-Winding, Swiss Made, Swiss Movement, Tachymeter, Water-Resistant
Bezel Material: Stainless Steel
Crystal: Sapphire Crystal
Case Size: 39