Dating seiko watches
During the First Boer War, the importance of coordinating troop movements and synchronizing attacks against the highly mobile Boer insurgents became paramount, and the use of wristwatches subsequently became widespread among the officer class.
The company Mappin & Webb began production of their successful "campaign watch" for soldiers during the campaign at the Sudan in 1898 and accelerated production for the Second Boer War a few years later.
Time-related features such as timers, chronographs and alarm functions are common.
Some modern designs incorporate calculators, GPS and Bluetooth technology or have heart-rate monitoring capabilities.
The Garstin Company of London patented a "Watch Wristlet" design in 1893, but they were probably producing similar designs from the 1880s.
Officers in the British Army began using wristwatches during colonial military campaigns in the 1880s, such as during the Anglo-Burma War of 1885.
The increased accuracy of the balance wheel focused attention on errors caused by other parts of the movement, igniting a two-century wave of watchmaking innovation. The verge escapement was replaced in quality watches by the cylinder escapement, invented by Thomas Tompion in 1695 and further developed by George Graham in the 1720s.A watch is a timepiece intended to be carried or worn by a person.It is designed to keep working despite the motions caused by the person's activities.Watches progressed in the 17th century from spring-powered clocks, which appeared as early as the 14th century.
During most of its history the watch was a mechanical device, driven by clockwork, powered by winding a mainspring, and keeping time with an oscillating balance wheel.
The application of the spiral balance spring (spiral hairspring) for watches ushered in a new era of accuracy for portable timekeepers, similar to that which the pendulum had introduced for clocks.