Brand: Rolex Model:Date Just Reference:16013 Serial number: R16013332B6252 Year or period:1979 Movement: 3035 wirst band( gold/steel) Case material:steel Case diameter (mm) excluding crown:36mm lenght of the bracelet/strap (original) Full set Rolex watch datejust in 18k gold and steel comes with original box and original warranty ,bought in the USA in 1987 in a good condition,with minor sign of wear watch is working very well , comes with all original parts and last service, date is unknown