according to an advertisement from 1963
Vintage IWC is full of bargains
featuring an original DOXA dial and handset
and UG's Calibre 215 automatic-winding micro-rotor movement within
It houses a luminous matte black dial with printed ‘Arabic’ indices
Girard Perregaux Richeville Perpetual Calendar USA Edition Vegan Leather according to an advertisement fromA perpetual calendar is like a small computer on your wrist. Think of it this way: Imagine a watch that keeps track of not only the time, but also the date, the day of the week, and the month, and also tells you whether its a leap year or not, and what the current phase of the moon is. Oh, and one more thing imagine it does all of this mechanically, using springs and gears, and that you only have to adjust it once every century or so. Crazy, right?