&bull; Experienced engineers<br data-start="414" data-end="417" /> &bull; Skilled technical team<br data-start="441" data-end="444" /> &bull; Industry standards<br data-start="464" data-end="467" /> &bull; Safe execution<br data-start="483" data-end="486" /> &bull;Mechanical Engineering Services
.

The 5512 was introduced link in 1959 and was in production till 1980. The 5513 was introduced a few years link later than 5512, in 1962 and was in production till 1989. Both link 5513 and 5512 are no-date models, contrary to ref. Submariner 1680.