Details:GS/TP (General Service Time Piece) wristwatches are designed in England by William Kroll, of Tender Co., and take inspiration from the British military and ordnance instruments of the first half of the 20th Century. They are produced in a small factory in Tokyo, housing movements made in Japan by Miyota and Seiko-Epson. GS/TP’s Telegraph watch draws influence from Morse Code operator’s pocket watches produced in the early 20th Century by various makers, including the West End Watch Co. of St-Imier, Switzerland. Rather than spelling out full numbers to express times, using these watches as a key the time could be tapped out as a single letter, from ‘A’ at 1am to ‘Z’ at midnight. AM times are printed in red around the outer ring, and PM is in blue. The steel pencil hands are polished for the military black dialled version, and blued on the ordnance cream dial, for the highest legibility.