1950s LeCoultre Cal.810 "Calendar disk" Champagne two-tone dial in Gold-field Flat-bezel

This is an extremely rare gold-filled model from the 1950s, featuring the Jaeger-LeCoultre Caliber 810 with a "calendar disc" champagne two-tone dial.
It is equipped with the rare Cal.810/AW movement, which features a calendar disc at the center of the dial.
By pressing the push button coaxial with the crown, you can instantly advance the date — a groundbreaking function for its time.
The champagne two-tone dial, accented with blue elements such as the date, date markers, and indices painted with blue enamel, beautifully complements the 10K gold-filled case.
Although compact at 32mm, the flat bezel, the solid cylindrical case, and the 19mm strap width give this precious piece a strong presence that exceeds its size.