The Submariner has steadily improved over several years. As new horological technologies surfaced, numerous patented by Rolex, the Submariner just got better, more accurate and more reliable. One thing that remained the same is the iconic appearance of the Submariner. While over time watches are made larger, the Submariner, which started as a 36mm view in 1955, over time it grew and today stands at a larger yet conservative size of 40mm that it is today.
It was only in 1966 that the Submariner Date was added to the long lineup of Submariners that have graced the wrists of those fortunate enough to have one. Complete with all the Cyclops lens which magnified the date screen, the Submariner collection currently offered a new feature which became among the most recognizable symbols of a Rolex watch.
The stainless-steel hands of the Rolex Submariner date is filled with luminescent substance also allowing for optimum visibility in low-light ailments.
The black dial features implemented luminescent hour markers featuring polished steel rims and a printed seconds track are available on the perimeter. The hour markers use a combination of different shapes: index hour markers are utilized for the 3, 6, and 9 o’clock positions. The rest of the hour markers aside from the triangle hour marker at the 12 o’clock position using a round shape.
After many mechanical calibers graced the cases of this Submariner through the years, the 116610LN is now powered by the on site sonic 3135 Automatic movement. Why had Rolex chosen this self-winding caliber for the Submariner?
The 31 gem 3135 movement uses the guardian of period oscillator which consists of a balance wheel and Rolex’s patented Parachrom magnetic immune hairspring. A spring which outperforms traditional hairsprings ten-to-one even in case of it becoming jolt.
Along with this remarkable oscillator, it is a Swiss-made chronometer which underwent many evaluations by COSC. Besides the fact that the 3135 is a COSC certified grade, it, like all mechanical Rolex watches, received further adjustments once it was returned into the manufacture after receiving its esteemed mechanical pedigree in COSC.
These in-house adjustments bring the accuracy up to -2/+2 seconds per day accuracy and this is more than twice as accurate as a certified COSC chronometer. Thus the print of the phrases Superlative Chronometer about the dial.
The 40mm case is made from 904L steel and is 13mm thick. It’s a wonderful size for everyday use and not as thick as the Rolex Sea-Dweller or Deepsea watch The front part of the case and lugs utilize a satin/brushed complete with polished bevels and edges and crown guards. The crown can be polished and uses a patented Triplock locking system ensuring the crown screws-down into the oyster case. This, along with the screwed-down good steel case back protects the crown and tightens the case with the identical security as a submarine hatch allowing to get a up to 1000ft / 300m water resistance evaluation.