Top 10 Introducing the Audemars Piguet Royal Oak Offshore Tourbillon Chronograph 25th Anniversary Replica Watches Young Professional

Six-figure price tags are a dime a dozen over the show floor. When I first saw the new Master Control Date using a sector dial in Jaeger-LeCoultre’s booth, I knew I needed to get some time with it in my wrist, but when every conversation I had with journalists, collectors, and other industry friends kept coming back to some $5,700 time-and-date watch, I knew we had something special on our hands.Openworked tourbillons and decimal dramatic watches are great, sure, but if we’re being honest, they are show pieces over anything else. Very few will ever be made, and very few will ever actually be worn out-and-about. I’m not saying I do not like such watches — I find them endlessly interesting and lust-worthy — only that I find watches like this Jaeger-LeCoultre much more persuasive in the end. The idea was to make a line of watches that represented the values of pure, classic watchmaking, having a concentration on simple aesthetics, performance, understated technology, and long-term functionality. Along with the first assortment of watches, Jaeger-LeCoultre started its “1,000 Hours Control” quality check program, which subjects completed watches into a six-week program of evaluations. This includes impacts, temperature fluctuations, motion through six positions, water resistance, and much more — it is all fairly standard stuff now (though six weeks is a lot of time for something like that), but in 1992 that was essentially unheard of.

Equipped with twin power sources, one for the time and the other for the multiple displays, the Duomètre à Quantième Lunaire is a complicated watch with an unusual combination of functions, including a moon phase and a 1/6th of a second counter.

Rather than a single major complication, the Duomètre à Quantième Lunaire features several minor ones that together make it interesting; the whole is greater than the sum of its parts. The Duomètre à Quantième Lunaire features a moon phase, date, twin power reserve displays, and a lightning seconds, powered by what Jaeger Lecoultre Tank Watch Replica terms a “dual wing” movement with twin barrels and gear trains. The origins of “dual wing” Originally devised for the grande and petite sonnerie, which required twin barrels to power the timekeeping mechanism and the automated striking mechanism, the “dual wing” concept has been appropriated by Jaeger-LeCoultre for an entire line of watches known as the Duometre. The Duometre collection began with a chronograph, then continued on with Spherotourbillon, which used one mainspring to power the tourbillon and the other for the flyback seconds. Likewise, the Duomètre à Quantième Lunaire has one barrel that drives the timekeeping portion of the movement, meaning it powers the escapement and time display. All the other indications – the moon phase, lightning seconds and date – are powered by the second barrel. 

Segregating the power source and transmission is meant to improve timekeeping by ensuring that the regulator has a consistent and uninterrupted supply of energy. In an ordinary movement, the energy transmitted to the regulator drops every so slightly when the date changes, because a sliver of energy is required to advance the date display. This is one reason why constant force mechanisms were invented. A new face for the Duomètre à Quantième Lunaire While the Duomètre à Quantième Lunaire was originally introduced several years ago, it was face-lifted this year. The latest version features an open-worked dial, with twin apertures on either side of the 1/6th of a second counter. Each aperture reveals the fan-shaped power reserve gear that indicates the remaining energy in each barrel. Beyond the apertures, the look is the same as the other Duometre models, with an eggshell-textured dial.

While the 1/6th of a second counter runs constantly, the central seconds hand is linked to the time-setting mechanism and resets to zero when the crown is pulled out to set the time. Only when the crown is pushed back in does it resume its motion, ensuring that the time can be synchronised precisely. The calibre 381 movement Like the other Duometre movements, the Quantième Lunaire has the twin barrels on the top half of the movement, each with grand sonnerie style winding ratchets that allow for winding of each barrel by turning the crown in opposing directions. 

All the bridges and base plate are made of unplated German silver, hence the characteristic subdued silver tone
The grande sonnerie-style winding ratchet

The look is lavish in appearance and engaging, with radial striping on the bridges and blued steels screws. Though the movement is carefully done and nothing appears amiss, the decoration is mostly done mechanically. The bevelling of the bridges for example is clearly done with an electric tool that resembles a dentist’s drill. The result is typical of Jaeger-LeCoultre’s unique approach that blends industrial production and high horology.

The rounded lines of the bridges characteristic of bevelling done with an electric tool

The verdict  This is an good-looking and interesting watch. The combination of complications is unusual and unique, however, it is not a logical or intuitive union as it is in a chronograph or grande sonnerie. An unkind conclusion would be that it was conceived just to put the Duometre concept to good use. Few other brands can produce watches like Jaeger-LeCoultre, blending complications, attractive finishing and competitive pricing. The Duomètre à Quantième Lunaire is available in pink gold, with a case diameter of 42mm. It is priced at US$39,200 or S$55,500.