Jaeger-LeCoultre is breaking ground with the Master Ultra Thin Tourbillon Moon. The new timepiece is the first in the Swiss watchmakers long history to combine a moon phase display and a tourbillon – two complications highly valued by mechanical watch collectors. Originally introduced in 2019, the triple moon phase indicator displays the age of the moon as well as its phases in both Hemispheres. In another first, the Master Ultra Thin Tourbillon Moon runs on the brands new self-winding Calibre 983. Beating at a frequency of 28,800 vph (4 Hz), the movement produces a 45 hour power reserve. JLC cast the watches 41.5mm case in Le Grand Rose gold, a pink gold alloy that retains its depth of color and resists fading over time. Complementing the warmth of the pink gold, an eggshell-white dial sets off the moon phase display and tourbillon. Key indicators on the dial are marked in red, adding a discreet touch of color while increasing legibility.
Set in the upper half of the dial, the astronomical complication displays the Northern Hemisphere moon phases with a polished golden disc set against a deep blue sky scattered with stars. Surrounding this is a ring with applied Southern Hemisphere moon phases on the left and the Age of the Moon on the right, each indicated by a double-ended hand. The lower half of the dial is dominated by the tourbillon. A polished pink gold bridge secures the titanium tourbillon cage as it completes one revolution every 60 seconds. Jaeger-LeCoultre’s signature ‘jumping’ complication handles the peripheral date display. Every month, the date hand makes a 90-degree jump, gliding rapidly from the 15th to the 16th, in order not to obscure the tourbillon.
The Master Ultra Thin Tourbillon Moon ($88,500.00) from jaeger-lecoultre.com.
