The Symphonia Grande Sonnerie 1860 is a perpetual calendar with three needles and one thread. The hour and minute hands of this watch are independent. It is inspired by the standard analog clock used to adjust the time in the 17th century.These are the chronographs of Baume \u0026 Mercier in the 1940s and 1950s, which proves that Baume \u0026 Mercier does not lack watchmaking capabilities, and that pricing is nothing more than one of the group's and brand's marketing strategies.Patek Philippe blended this trend into the design and formed a Gondolo style watch. The digital hour markers of the Art Deco style. The rectangular case has 50mm between the upper and lower ears. The curved design fits the wrist in the most elegant way.
The dark blue disc surface is fired by Grand Feu enamel, like a azure blue ocean.So at least I can say now that this 1965 Innagar chronograph is the only one.Lange’s sesame chain structure takes Lange’s Richard Lang 'PourLeMerite' tourbillon watch as an example. Its sesame chain structure has 212 links and 636 parts, and its cross section is only 0.6x0.3 mm in size.