Illinois pocket watch dating
It was needed for the study of astronomy, physics, and for ship captains to calculate location - increasing the likelihood of the safe return of a ship, its cargo, and crew. The first watch-makers were locksmiths and blacksmiths because those guilds worked steel to make tools and implements.Eventually locksmiths dominated the trade as brass, silver and gold were used to replace steel.Determining the age of an antique pocket watch is a matter of finding a good reference guide and checking the manufacturer's serial number.(Most information is available on the internet.) The serial number on an American watch is on the movement inside the watch, not on the watch face or the casing.
In the 1700s English watchmakers began creating gold and silver pair cases to slide the watch into for safe keeping.Most clocks were huge and resided in churches or cathedrals.Counterbalances and weights to power clocks were usually made of stone blocks or metal.Glass crystals were added to protect the dial but because they were translucent, they still had to be removed to read the time.English watchmakers added jewels (gemstones) in the 1700s as bearings in the watches to prevent friction and wear between metal parts.
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Today, the number of jewels a watch has is a sign of its quality and durability.