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Jewel bearing of a balance wheel, supported by a lyre-shaped spring. The Incabloc shock protection system is the trade name for a spring-loaded mounting system for the jewel bearings that support the balance wheel in a mechanical watch, to protect the wheel's delicate pivots from damage in the event of physical shock, such as if the watch is dropped.
A jewel bearing is a plain bearing in which a metal spindle turns in a jewel-lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. The jewels are typically made from the mineral corundum, usually either synthetic sapphire or synthetic ruby. Jewel bearings are used in precision instruments ...
The Model 23 was a 16-size chronograph pocket watch. The Model 4992b was in a 16-size case with a black dial. It was used as the pocket watch for the U.S. military, featuring a less accurate 21-jewel railroad grade movement. [citation needed] By 1970, 13,086 Hamilton Model 21 Marine Chronometers had been produced.
A Baltimore City man died and nine other people were injured after a shooting and fiery crash in the Baltimore suburb of Towson Tuesday night, authorities said.
Croatian authorities arrested an Austrian national on suspicion of trying to smuggle a corpse, after he was stopped at a border crossing with a dead woman riding in his car's passenger seat ...
Michael Likosky and Laura Norén 26 April 2012 - Institute for Public Knowledge, New York University Law & Public Finance Center on Selection Filter
Video obtained by CBS News appears to show the suspect riding out of the park just before 7 a.m. and turning onto West 85th Street.At 7:04 a.m. the suspect then took a cab northbound from 86th and ...
The last image we have of Patrick Cagey is of his first moments as a free man. He has just walked out of a 30-day drug treatment center in Georgetown, Kentucky, dressed in gym clothes and carrying a Nike duffel bag.