Important Modern & Vintage Timepieces...

Hong Kong, Nov 25, 2023

LOT 151

A. LANGE & SÖHNE, REF. 119.026 & 119.032, GROSSE LANGE 1 LUNA MUNDI, A SET OF TWO, LIMITED 24/101, 18K GOLD

HKD 500,000 - 800,000

USD 64,000 - 104,000 / CHF 58,000 - 92,000 / EUR 60,000 - 96,000

Sold: HKD 600,000

A very fine, rare and limited set of 2 watches, made in a limited edition of 101 sets in 2003. 
A) 18K white gold, manual winding wristwatch with white silver dial, subsidiary dials for the off-center hours with the Ursa Major symbol, and applied white gold radial Roman numerals and indexes at 9, the seconds at 5, power-reserve sector at 3, apertures for the patented «oversized» date at 1 and the moon phases with the age of the moon at 5. 
B) 18K pink gold, manual winding wristwatch with silver dial, subsidiary dials for the off-center hours with the «Southern Cross» symbol and applied pink gold radial Roman numerals and indexes at 9, the seconds at 5, power-reserve sector at 3, apertures for the patented «oversized» date at 1 and the moon phases with the age of the moon at 5.


Grading System
Grade:
Case: 2

Very good

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 1-01

As new

HANDS Original

Brand A. Lange & Söhne

Model Grosse Lange 1 Luna Mundi

Reference 119.026 & 119.032

Year sold in 2004

Movement No. 39125 & 39096

Case No. 152524 & 152324

Bracelet leather strap with 18K white gold Lange buckle & 18K pink gold Lange buckle

Diameter 42mm

Caliber L 901.8 &L 901.7

Signature dial, case and movement

Accessories ALS fitted box, guarantees, instruction booklets, push pins, pouches

Notes

LUNA MUNDI: A set of watches consisting of the «Ursa Major» in an 18K white gold case and the «Southern Cross» in an 18K pink gold case. Both watches feature a continuously driven and very precise moon phase indication. Unlike most moon phases in less sophisticated movements which only adjust twice a day, the A. Lange approach to advance the moon disc provides a much higher degree of precision and a deviation from the visible lunar orbit of only 1 day in 122.6 years, if the watch is kept running continuously. The «Ursa Major» has 398 movement parts and displays the moon phase as seen from the Northern hemisphere; the «Southern Cross» has 402 parts and displays the moon phase as seen from the Southern one. The difference in the movement parts is due to the fact that the moon disc for the Northern hemisphere is rotating clockwise, the one for the Southern hemisphere is rotating counter-clockwise. The «Ursa Major» is the first wristwatch to realistically display the waxing and waning of the moon as it can be seen from North of the equator.