Jaeger-LeCoultre Duomètre Quantième Lunaire Q6042422 Functions & Care

See this watch online: https://goo.gl/UdawJZ Discover the world of Jaeger-LeCoultre with Govberg: https://goo.gl/bUquy8 Greetings, and welcome to the world of Jaeger-LeCoultre. Today I'll be your guide to the operation and care for your Jaeger-LeCoultre Duometre Quantieme Lunaire. It's important to note that this is a manual winding time piece with two main spring barrels and two independent drive trains. Therefore it's necessary when winding the watch to energize both of them simultaneously. Both main spring barrels hold approximately 50 hours of autonomy but it is necessary because of the bifocation of the watch's functions that both main spring barrels be wound in order for the watch to operate. You can see the power reserve scales within these sceletonized portions of the dial, each representing 50 hours of autonomy when fully wound. In order to wind the watch the crown must be turned in both directions. Turning clockwise and counter-clockwise energizes the main spring barrels to operate the balance of the watch as well as the functions of the watch. When turning the crown in opposite directions one main spring barrel ratchets while the other winds. It's important to note that this manual winding watch has been designed with provisions such that it cannot be accidentally over-wound. Once the watch is wound one main spring barrel powers the balance while the other powers all the functions of the dial. It's important to note that when setting the watch it features a unique zero reset system. Pull it to the first attempt and now you stopped the flying seconds dial. Pull it to the second attempt, and now the hammer falls at center on the movement synchronizing the seconds hand with the index at 60. At this point you can set the watch precisely to a known accurate reference timer such as an atomic clock. With respect to setting, there are restrictions. It's important to note that the pusher corrector for the date at 10 o'clock and the dimple corrector for the moon phase should never be actuated between the hours of 10 p.m. and 3:30a.m. as this is the period during which the automatic change-over of the moon phase display and the date are engaged. Attempting to manually correct either the moon phase or the date during the change-over can severely damage the movement so always set the watch outside of the 10 p.m. to 3:30 a.m. sweep of the dial before attempting to make any corrections to the moon phase or the date. With respect to water resistance this time piece is rated to 5 atm or 50 meters. The manufacturer expresses that this is sufficient for shallow wading, bathing, but not diving, no high-impact water sports such as jet-skiing that could create hydraulic shock that would bypass the seals of the watch. In addition it's important to note that the manufacturer advises that no leather strap should be brought into contact with moisture regardless of the watch's water resistance rating as leather is a porous natural material that can be rapidly degraded by exposure to moisture. Moreover, it's important to avoid ever actuating any functions of the watch, winding, or setting, either the time or the complications when there is water on the watch or when the watch is submerged as this can bypass the seals, introduce moisture to the interior of the watch and cause catastrophic cosmetic and mechanical damage. Moreover, the manufacturer advises that water resistance is never a static feature of the watch. It's valid only from the point the watch leaves the watch maker's bench. After that period seals age and lubricants dry up so the manufacturer advises having the watch water tested at minimum every 24 months to ensure that factory rated hermiticity is retained. With respect to magnetism, the manufacturer urges caution. Keep the watch distant from high-powered wiring looms, refrigerator doors, speakers, and sub-woofers, especially MRI equipment as all of these can magnetize the hair spring of the balance. Should you suspect that your hair spring has become magnetized take the watch to an authorized Jaeger-LeCoultre factory service center or authorized independent retailer where specialized equipment is available to de-magnetize the hair spring and restore the chronometric performance of your time piece. The manufacturer also advises that with respect to comprehensive mechanical service a watch be serviced approximately every two years. It's important to service your watch exclusively with factory boutiques, authorized independent retailers, and factory service centers, as these agencies alone have the trained personnel, specialized equipments, and original factory replacement parts to ensure the investment as well as chronometric performance value of your watch. Moreover, only these agencies can offer factory warranty on the parts as well as the service performed.