A. Lange & Sohne 1815 Annual Calendar

With analogue displays for the date, day of week and month as well as a moon-phase display calculated to remain accurate for 122.6 years, the 1815 ANNUAL CALENDAR is an ideal everyday companion. The model version in white gold features an argente-coloured dial crafted from solid silver.
Case dimension
Case diameter: 40 mm
Case thickness: 10.1 mm
Winding mechanism
Manually wound movement
Power reserve
72 hours
Complications
Calendar function, Moon-phase display, Day-of-week display
Reference
238.026 E / LSLS2383AP
Dial colour
Argente
Case material
18-carat white gold
Case back: sapphire glass
Case dimension
Case diameter: 40 mm
Case thickness: 10.1 mm
Water resistance
3 bar
Movement designation
L051.3
Number of movement parts
345
Winding mechanism
Manually wound movement
Power reserve
72 hours
Balance frequency
21,600 semi-oscillations per hour (3.0 Hz)
Complications
Calendar function, Moon-phase display, Day-of-week display
Leather Strap
Black, Alligator leather
Our alligator straps fully comply with the CITES regulations: Species – alligator mississippiensis. Extraction method – farmed. CITES Appendix – Appendix II
Prong buckle
18-carat white gold