Cartier Tank Francaise Gold Ref 1840A Cartier watch for a new era of collecting Cartier watches have seen a huge rise in popularity over the past couple of years and the Tank has a rich heritage dating back to the first quarter of the 20th century. We are offering a delightful automatic winding, reference 1840, Tank Francaise in 18kt yellow gold. The silver wave pattern dial is in perfect condition and features the secret signature in the VII numeral. The blued steel hands give the