Genuine World War 2 Hamilton Ship Chronometer model 21 Balance STAFF. The Hamilton 21 is the large 35 size, 14 jewel, master chronometer that was mounted in a tub in a gymboled box. Foreign orders are welcome, but note you must take care of any VAT, customs, etc that your country imposes.  We are now semi-retired and no longer repairing these chronometers for customers, thus we are reducing our stock.