A 20th Century Swiss centre seconds lever deck watch with British military markings in a stainless steel open face case. Keyless 16 jewel gilt bar movement marked with the Ministry of Defence broad arrow, going barrel. Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring. Club foot lever escapement. Signed and numbered white enamel dial with centre seconds, Arabic numerals, blue steel gold hands. Plain stainless steel open face case with screw bezel and back marked “Acier Inox – Staybrite”.