The MWC Mk III Automatic is delivered with both a black and and a grey NATO strap and is a recreation of the classic 1950s NATO specification watches which were made under UK Ministry of Defence reference 6B/346 Mk XI. Although it is very similar in style to the watches made at that time it offers greatly improved accuracy through the use of a modern 24 jewel Automatic movement with 40 hour power reserve and hacking function.