Pasangkan balik caseback dan screw dengan ketat. Pastikan seal diletakkan ditempatnye. Masukkan crown dengan pusing2kan sehingga ke point penyambungan stem dan tekan hingga bunyi klik melekat (Put the movement inside the case, screwed the caseback tightly. Pushed the crown until it was fixed with the stem)

Since Sumerian time, human being has invented the devices to measure and keep track of time. Clock and watches further developed in modern days. Antique and vintage mechanical watches and clocks produced in Switzerland, Germany,Japan and USA were high precision device that were sought after by many collector for their complications, rarity and high in value....