Seiko Presmatic 5106-7040 - 33 Jewls This is why the so-called Seiko presmatic, set the date by pressing on the crown area of the hexagon production in January 1969 Đang Up Hình rear casing material base metal plated covered Seiko gold (SGP) part of the default Seiko old model in the 1970s under the code is usually done behind movement and caseback closed shell, rather than the outside of the caseback. using a Seiko automatic movement cal, 5106A with 33 jewels and works at a frequency of 5.5 bps rate is relatively low, a unique setting by pressing on the crown area of hexagonal while the day setting up the user manual after the 24-hour rotation, leasing system functions and can be turned by hand to fill the power winding reserve, classified as high-level Seiko movements in the ranks with the other features of the micro adjust wheel balance / fine and large size jewelry and used 33 that function. Presmatic Seiko is a Seiko watch line is not easy to find a day-to-day, there are two models of the same brand but with different sub-the Seiko "Presmatic" for the international market and "Seikomatic-P "is intended only for the Japanese market (JDM), including premiums skirt Seiko watches ever produced in its time, the number of production is not a model" series products "other many Seiko insurance models, but it is also because it is only produced for two years from 1968 to 1970 for the population is very small, more than that, which makes it especially because Seiko movement cal. 5106 is only used on Seiko presmatic and Seikomatic-P alone, the report stopped production because presmatic intersects with luxury brands such as Seiko Seiko KS and GS Đang Up Hình
