A. Lange & Sohne Datograph Perpetual Tourbillon Honeygold “Lumen”

The DATOGRAPH PERPETUAL TOURBILLON HONEYGOLD “Lumen” unites three significant complications in a case made of 750 HONEYGOLD: a flyback chronograph, a perpetual calendar and a tourbillon with a stop-seconds mechanism. Furthermore, all displays are luminous. The model version in 750 HONEYGOLD features a semi-transparent dial made of sapphire crystal and is limited to 50 pieces.
Case dimension
Case diameter: 41.5 mm
Case thickness: 14.6 mm
Winding mechanism
Manually wound movement
Power reserve
50 hours
Complications
Outsize date, Day/night indicator, Moon-phase display, Calendar function, Tourbillon, Chronograph, Day-of-week display
Reference
740.055FE / LSLS7406AA
Limited
50 pieces
Case material
18-carat HONEYGOLD
Case back: sapphire glass
Case dimension
Case diameter: 41.5 mm
Case thickness: 14.6 mm
Water resistance
3 bar
Movement designation
L952.4
Number of movement parts
684
Winding mechanism
Manually wound movement
Power reserve
50 hours
Balance frequency
18,000 semi-oscillations per hour (2.5 Hz)
Complications
Outsize date, Day/night indicator, Moon-phase display, Calendar function, Tourbillon, Chronograph, Day-of-week display
Leather Strap
Dark brown, Alligator leather
Our alligator straps fully comply with the CITES regulations: Species – alligator mississippiensis. Extraction method – farmed. CITES Appendix – Appendix II
Deployant buckle
750 HONEYGOLD, 750 white gold