The present Blancpain "U.S. Navy" is one of the rarest diver's watches in the world, as until to date, we only know of three such examples in total. One of them participated at the Fifty Fathoms exhibition in 2010. The three watches have in common that their serial number all fall into the 3,200 sequence.

These watches are part of the milspec 1 series with which they share the same bezel featuring a triangle but also the small winding crown. Equally they all feature the schild cal. 1361 modified with a hack feature, and this series features a humidity indicator placed on the dial below the center.

We understand that Blancpain was pitching for a larger order with the U.S. Navy, for which purpose these watches were made. As Blancpain did not win this important contract, the "U.S. Navy" model never went beyond the prototype phase. The case is made of an anti-magnetic alloy with a greenish hue, often called bronze by collectors. The Blancpain "U.S. Navy" is not only one of the rarest diver's wristwatches in the world, but also one of the best looking. The present example here, in extraordinarily good condition must be considered one of the most worthy collectors watches to aficionados of diver's watches.