ゼニスさんのインスタグラム写真 - (ゼニスInstagram)「#Chronomaster: Since its release in 1969, the El Primero has remained the automatic chronograph calibre par excellence. Its high-frequency beat rate of 36’000 VpH (5 Hz) and its column-wheel mechanism ensure tried and tested reliability and precision. With the Chronomaster Open, the wearer is offered an unobstructed view onto the beating heart of this legendary movement. Which ine is your favorite, the Chronomaster 38mm or the Chronomaster Open? #Zenith #ZenithWatches #Watches #Watch #Watchesofinstagram #Watchfam #WatchoftheDay #Luxury #WatchAddict #Watchcollector #Horology #DailyWatch #ElPrimero #Chronograph #VintageWatches」10月14日 4時18分