CONCORD Caliber 288 Instruction Manual page 7

CALIBER 288
AUTOMATIC PERPETUAL
CALEndAR CHROnOGRAPH
The highly sophisticated Caliber 288 is endowed with the four traditional
perpetual calendar counters. The high precision astronomical moon
phase offers a degree of accuracy far superior to that of a traditional
moon-phase display, clocking up a one-day difference only once in 122
years compared with just over 2 1/2 years for a standard version.
Four correctors along the case sides serve to adjust the perpetual
calendar functions, and can be handled by means of a special stylus
provided in the dedicated presentation box.
13