Chronoswiss Lunar Chronograph Ref. 77990 Automatic Watch
The Chronoswiss Lunar Chronograph Ref. 77990 is a classic Swiss mechanical timepiece that blends traditional chronograph functionality with an elegant moon-phase complication. Introduced in the late 1980s, this model reflects the early design philosophy of Chronoswiss—combining vintage-inspired aesthetics with sophisticated mechanical engineering.
Crafted with a refined gold plated 38 mm case, the watch features a detailed multi-complication dial that showcases Chronoswiss’ signature classical styling. The dial typically displays Roman numeral hour markers, heat-blued Breguet-style hands, and a balanced arrangement of subdials for the chronograph functions. A distinctive moon-phase display and pointer date with crescent tip add both visual depth and practical calendar functionality.
At its heart is an automatic mechanical movement, powered by the Valjoux 7750 -based calibre, 25 jewel movement, renowned for its reliability and use in many high-quality Swiss chronographs. The movement drives the central chronograph seconds hand, subdials for elapsed timing, and the moon-phase and date complications.
Protected by an acrylic or sapphire crystal and paired with a classic leather strap, the Lunar Chronograph offers both vintage charm and everyday functionality. Its elegant proportions and complex dial layout make it a standout piece for collectors who appreciate traditional watchmaking with multiple complications.
Key Features
Reference: 77990
Case size: ~38 mm diameter
Movement: Automatic mechanical (Valjoux-based chronograph)
Functions: Hours, minutes, chronograph, pointer date, and moon phase
Dial: Multi-complication layout with Roman numerals and blued hands
Strap: Leather with pin buckle
Era: Circa late 1980s–1990s production
Overall, the Chronoswiss Lunar Chronograph Ref. 77990 is a distinctive vintage-style chronograph that combines calendar, moon-phase, and stopwatch functions in a refined, classical package—making it a sought-after model among collectors of mechanical Swiss watches.
This watch has been recently serviced and running great.
In overall solid condition.
The case has some wear.
