[For Sale] Longines 13ZN - ULTRA RARE!! - Reference 5646 18k gold

Hello everyone, For sale is the legendary Longines 13ZN, Reference 5646 in 18k gold, from 1948. This is a true horological masterpiece, a collector's watch that will forever stay in the history of watchmaking as one of the greatest chronograph movements ever produced. The 13ZN is a column wheel flyback chronograph housed in an oversized 38mm case which was very rare at the time. Everything works as intended. Please refer to the pictures for the condition, but feel free to reach out for any......