Tissot Heritage 1936 a release from Tissot in 2016 to celebrate their 150 years anniversary. Inspired by vintage military theme with an old-school look with the Brequet hands, arabic numerals, onion crown and a vintage Tissot logo used from 1931. During WW1 in the battle field, pocket watches were not practical thus converting into trench watches by soldering wire lugs onto pocket watches and attaching it onto one piece strap in today term the nato or perlon. Besides this aesthetic elements, this piece also comes with an officer's case back. In the past this case served to improve water resistance and for soldiers to engrave.