Stainless Steel Deck Watch

A large 20th  Century Swiss lever deck watch in a open face stainless steel case.  Gilt split three quarter plate keyless movement with going barrel.  Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring.  Club foot lever escapement, escape pivots with endstones.  Centre seconds transfer wheel above top plate.  White enamel dial with centre seconds, Roman numerals, blue steel hands.  Large open face stainless steel case with screw bezel and back marked with a broad ministry arrow.