JLC's focus for this year's new products will be on complicated pieces such as its tourbillon, fly-back, reverso and grand GMT two time-zone watches.
Gyrotourbillon, the grand complication of JLC watches, has a unique spherical tourbillon that is able to compensate for gravity upside or downside, unlike traditional tourbillon meant for pocket watches worn vertically.
It also features special glass that makes the tourbillon window appears brighter.
The perpetual calendar of the Gyrotourbillon is indicated by two retrograde indicators for month and day. Another retrograde indicator of the leap year is on the back.
It is fitted with a grey crocodile leather strap with folding clasp in platinum. Only 75 will be produced, at no more than 20 a year. Each will be priced at 390,000 Swiss francs (HK$2.37 million).
The Master Eight Days Perpetual in a 41.5mm-diameter case boasts an eight-day reserve.