An open faced silver chronograph by Hawley & Sons, London. 1892 Birmingham, case by Louis Jacot sterling silver, presented as open faced chronograph by John Hawley Sons, inner case marked 1857 86121 ref 52 Hatton gardens London & at Coventry, Reliable trade mark Registered. Key wind. Total weight: 172.4grams
- Sterling Silver - Sterling silver is a mixture of 92.5% pure silver and 7.5% of another metal, usually copper. Fine silver is 99.9% pure silver, and is relatively soft and the addition of the very small amount of copper gives the metal enough strength and hardness to be worked into jewellery, decorative and household objects.
- Chronograph - A chronograph is a watch that also incorporates the features of a stopwatch, to measure elapsed time. Most chronographs are operated by two buttons, one to start and stop the chronograph second hand, and the other to return that hand to the starting position.
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