Hi, for sale a rare Squale 1521 50 atmos “Marina Militare”, used in 1980-1990 by Comsubin (special submariner corps in Italy). Here is a description of history of these wristwatches: http://www.thedivewatchconnection.com/forum/viewtopic.php?f=2&t=34616 All stainless steel, mineral glass, diameter …