1. All-steel Watches and Semi-steel Watches
Mechanical watches can be separated into all-steel ones and semi-steel ones. What are all-steel and semi-steel? The two of them allude to the materials of a watch’s external packaging. All-steel watches are those whose external housings and spreads are made dong ho chinh hang of non-rust steel while semi-steel watches are those whose external housings are copper materials plated with chromium and whose back spreads are non-rust steel. Neither all-steel watches nor semi-steel watches are pertinent to the nature of their decks.
2. Drills of a Watch
Most dials are cut with drills (eg. 212ZUAZ) and frequencies (eg. 216 00). The quantity of a watch’s drills is a significant characteristic of its apparatus. In accordance with its capacities, a general mechanical watch requests for 17 to 19 drills while a programmed watch requests for 25 to 30. As a matter of fact, an excessive number of drills have scarcely any capacities. They simply finish the watch. Nonetheless, the higher the recurrence, the better the watch. The recurrence alludes to the occasions the pendulum influences every hour. A watch with under 18000 frequencies is known as a low recurrence one or a moderate influence one while a watch with in excess of 21600 frequencies is known as a high recurrence one or a high-influence one. The higher the recurrence, the more precise the time.
3. Assortments of Mechanical Watches
Mechanical watches can be isolated into general ones, schedule ones, programmed ones and mechanical-and-programmed schedule ones. They are totally added to a suit of schedule or a programmed establishment. Some have single schedule structures which just show dates while some other have twofold schedule frames or complete schedule structures which show week by week schedule or even month to month schedule.
A programmed watch is that whose programmed hammer moves as the arm does, making the programmed establishment rolls the spring tight with the goal that time moves. Programmed watches can likewise be separated into full-programmed ones and self-loader ones. The previous can be twisted regardless of what bearing it moves in while the last can be twisted just when it moves a single way. Since the last have been killed and are did not deliver anymore, all new programmed watches are full-programmed ones.
4. As per the structures and capacities, mechanical watches can be isolated into cutting edge ones, middle of the road ones and rudimentary ones.
Propelled watches receive twofold metal open parity wheels or equalization wheels made of alloying materials. There are no under 16 screws on the equalization haggle than 17 jewel components just as twofold hairspring whose temperature coefficient is phenomenal low. A propelled watch has the capacity of “Three Precautions” – Water evidence, Shock verification and Magnetization confirmation. The time mistake it moves in a single night is between positive and negative 30 and 5LS. Regularly, this sort of watch has a life expectancy of over 30 years.
Middle of the road Watches
Middle of the road watches embrace alloying balance wheels. There are in excess of 10 screws on the equalization haggle than 15 precious stone components just as level hairspring, with the establishments of stun verification and polarization evidence. The time blunder it moves in a single night is between positive &negative 45 and 60 seconds. Ordinarily, this sort of watch has a life expectancy of over 15 years.
Basic watches receive copper alloying balance wheels. There are no screws on the equalization wheel however under 7 jewel elements(some have no precious stone). It doesn’t have the capacity of “Three Precautions”. The time mistake it moves in a single night is sure and negative 80 seconds or somewhere in the vicinity. Regularly, this sort of watch has a life expectancy of over 2 years.