A very interesting glance with some of the Swiss movements more not very common never, Tissot calorie. 2250 which functioned without lubrication. Only the wheel and part of balance that speeds were metal, the rest was out of plastic. Fascination.

Tissot calorie. 2250, also known as the Astrolon or a Sytal, (an acronym for of Self-lubrication total of System) were produced with beginning of the year 70. It was available in several variations, with and without the calendar. Although it is basically conventional in the provision, it is definitely different from other keyless watches in that the majority of its components plastic are moulded by injection. It semi-automatically was assembled and did not require any lubrication of the whole. The account of parts was tiny room of 91 as found in a standard Swiss movement with 52 in Astrolon, and no screw is used whole. The only metal components are balance, the basic element and the barrel, and the mechanism of rolling up keyless. The wheels of train function in the dishes out of plastic or, most of the time, on small metal catches with the fine pins, in a hurry in the dishes. A nice contact was to make the various components in various colors.

Show out of plastic of Tissot the Astrolon [4/2/00] [time zone]