Patek Philippe Perpetual Calendar 3448 Ref. 3448J

The 3448 is one of Patek's most coveted references. It was the first self-winding perpetual calendar to be made - not just by Patek, but by any manufacturer. It is said a little under 600 examples were made, including a few without moonphase and an exceedingly small number of transitional models featuring the leap year indicator as later found on the ref. 3450. The present example was manufactured in 1972 and later sold by Antiquorum.