Watch the movement in shock with shock devices, so watch by the vibration, the pendulum axle journal can not easily be broken.
Determine whether the earthquake watch, simply open the form the back, put plywood on the pendulum to observe the drilling device care situation, that is able to identify. If you put plywood mounted on the outside of the pendulum is reed drill care (shock spring) Jia Zhu, is the shock watch. If the swing of the pendulum mounted on plywood prop installed a round piece drill outside, relying on two small screws placed around the wafer tight plywood above, it is not shock watch.
Earthquake watch some imported case or dial on the back cover is usually marked with lNCABLOC or SHOCKPROOF or DIASHOCK or PARASHOCK or ANTI ~ SHOCK and so forth. China-made watchs are normally marked with "shock" words.
Earthquake watch is not absolute shock, the earthquake drill the bowl and move the location of care have placed a limit, and put the shaft journal is very thin (about 0.085 ~ 0% 005 mm), if subjected to severe vibration, still broken. In addition, severe vibration, the springs will cause disorder, caused by other mechanical damage. Therefore, the watch also need to avoid severe earthquake shock.
2. How to identify water-proof watch
1). Spiral waterproof watch. Case it has threads on the shell and the back cover, relying on the role of the screw shell and cover tightly on the rotary joint. watch glass is rolled into the tool, more closely. Article handle on the back cover and the header and the shell are placed where and close with a waterproof gasket (mostly with the small nitrile rubber production), so the water can play a role. This waterproof watch case back cover has a notch out there, some of the protruding part of the polygon. Switch back cover must use the appropriate tool.
2). Withhold waterproof watch. Inside back cover of its high-convex bead ring, so that the back cover on the case and is close to withhold it. Watch glass and spiral waterproof watches are also rolled into the use of tools, more closely. Article handle on the shell and the back cover on the header and the contact areas also put a waterproof gasket. Open the back cover of this waterproof watch is pry a knife, and rolled off the back cover is also used to push a withheld or lift a finger.
3). Casing pressure waterproof watch. Case on its shell casing pressure on the bottom cover. The watch case back cover of the body is special: the tube is surrounded by a high wall, the movement mounted on the tube wall inside the back cover, watch cover glass mounted directly above the rear trunk, into the future on the shell casing pressure , watch glass and back cover to be tightly trap, which play the role of water-proof seal. Article shafts on which two sections connected by the upper and lower, switch cover, the first article on the Removal section on the handle bar on the head and stem, with special rolling on and rolling with a press tight. No special roll with the fingers can be pressed to push.
Article Source: http://www.replicasinfo.com
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