senior worker looking at to a clock on his wrist watch waitng working hours lunch brake

army blue boy brake building checking clock clothing construction craftsman elderly engineer engineering equipment experienced expertise face factory field hard hat helmet hours industrial industry job labor looking lunch machinery maintenance male man manual mechanic military occupation old operation peoople people person photograph productivity professional project punctuality real safety senior soldier spring structure teamwork technical technician technology time timing troop vehicle waiting waitng warehouse watch work worker working wrist yellow