Hi, I might bid on this 1940's chronograph ref. 347 nr on eBay: http://www.ebay.com/itm/HEUER-RARE-CHRONOGRAPH-S-S-RETAILED-TURLER-50s-ORIGINAL-BLACK-DIAL-VALJOUX-23-/302188259293?hash=item465bd2e7dd I found it on OnTheDash …