Black Dial Mulco 1940's 27mm All Steel Mechanical Manual Winding Watch

An attractive manual winding Swiss shock protected all steel watch fom the 1940's. If not service issue, with the specification, this would have been made for serious Sportsmen/Adventurers.
It has a most attactive, black military style dial with Arabic numerals  - Working correctly and keeping time, the case measures 27mm by 35mm excluding the winding crown .