Another plus is the presence of tritium on some examples
fixed tachymeter bezel and a clean but sporty dial
even though it's an aftermarket addition
the dial display of the Reverso is hidden and protected from any knocks or persiflage one might encounter whilst galloping after a ball astride a horse in a muddy field
This particular Reference 810 also features the desirable AOPA logo on the dial
Patek Philippe Retrograde Perpetual Calendar Dirty Dozen Another plus is the presenceA 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, 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? Patek has