The Grand Seconde Moon is a very beautiful watch having a classically styled round case that has been mirror polished all around. The material for the case is 18k white gold, and its stunning. The case sizs is somewhat large for a dress watch, and its measures in at 43 millimeters in diameter, and 13.23 millimeters in thickness. To make sure the case is comfortable at the wrist, the lugs have been made short and curvy, and they bend down from the case to embrace the wrist nicely. Sapphire is used for both the crystal and the exhibition caseback, and is both scratch resistant, and anti reflective. The crown is made of the 18k white gold, and this is not a swimming watch, but it has 30 meters of water resistance.
The watch dial is composed of serpentinite, and is exquisite. The dial has a very unique texture to it, and has a shade of dark, luxurious green that is very pleasing to the eyes. The material takes its name from the word serpent because of the snake like texture, and it is sourced at the base of the Matterhorn mountain in Switzerland. The moon and the time display are both housed in subdials forming the number 8.
Both subdials are framed in 18k gold rings. The small dial at the 12 gives the time, and the larger dial at the 6 gives the phase of the moon, and the date. The watch hands are done in rhodium, and the moon phase disc is done in serpentinite.
Regarding the movement, the watch is powered by the in house Jaquet Droz 2660QL3. The movement is self winding and has a frequency of 4Hz. Silicon was used for the balance spring as well as the pallet horns, and the watch has a double barrel offering 68 hours of power reserve. The movement is very competent and reliable, as well as durable. I love watches that have interesting treatments at the dial, and making a dial of natural stone sourced at the base of an Alpine mountain is about as cool as it gets.
Jaquet Droz has the talent and expertise to make such materials work for them because they get it right every time. I am sure its not easy, and i cannot imagine the trial an error that goes into such art work.
This timepiece is a watch that suffers from no design oversights whatsoever. It is a very limited edition, and t is expected to have only 88 units made. The cost of the watch is $18,000, and more information is available at jaquet-droz.com. Thank you.