Longines Ultra-Chron "Calatrava" Automatic Date Ref. 8383-1 (Cal. 431)

Introducing this stunning Ultra-Chron from 1973, showing its long and straight lugs that subtly echo the silhouette of a Calatrava. Featuring a sunburst dial in near pristine condition with its case remains in original, unpolished condition reflecting the watch’s intended aesthetic in what is likely its original state. A date window sits at the unconventional 4:30 driver’s position, a distinctive design detail Longines incorporated into certain lines throughout the 1960s and ’70s. Housing a high beat in house movement from Longines, Cal. 431. Two of the notable features of this movement is the instant date change at mid night and high beat rate (10 beat per second) Fully serviced in Nov 2026 Case is good condition, unpolished Dial is in near pristine condition Instant date change at midnight Original Longines signed crown Movement is in clean condition Perfect time keeping Dimension (excluding crown) : 36mm Thickness (including crystal) : 11mm Lug width : 18mm Lug to Lug : 41mm