![]() The cookie is used to store the user consent for the cookies in the category "Other. This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. Just ask the Explorer II, the original Sea-Dweller, or even the Submariner.įunctions: hours, minutes, center seconds, date It might not be the most elegant or visually appealing movement in history, but when something needs doing right, it gets the job done. It is also the consumer’s watch as it keeps great time, remains as robust and reliable as when it left the factory floor, and it simply gets the job done. It is a pleasure to work on, can be made to perform exceptionally decades after production, and never becomes tedious. The 1575 is most definitely the watchmaker’s watch. The cam has a cutout for the jewel to sit neatly within, and as the watch gets near midnight the lever with the jewel attached is forced into the cutout of the cam, enabling the date to change at exactly midnight. The date changes at midnight and it does so instantaneously using a cam, spring, and jewel. The movement called “1575 GMT” is the one that features a GMT complication.Īnd to further complicate things: when the watchmaker opens a watch powered by a 1575 movement, the bridge may well be stamped “1570.” This is not incorrect it is merely something that happened back in the day. Much like the oscillating weight and shock protection for the escape wheel, the instantaneous date function of the 15 family is something Rolex uses to this day.įirstly, though, let’s get this out of the way: there is much confusion about the date model for the 15 series, but do note that the 1575 is not a GMT movement it is a date-only model. This again is a feature that Rolex used throughout the 30 and 31 caliber families. It features a center axle rather than ball bearings, and is held in position by two ruby jewels, thus reducing friction and improving performance. The oscillating weight is heavy and has the mass to get the job done. With a free-sprung balance that can’t happen as there are no pins timing is controlled via the balance itself. Their downfall is that if the watch receives a shock the pins can move, resulting in a timing error. Regulating pins are used to control the active length of the hairspring, thus determining timekeeping. The 1575 uses a free-sprung balance, which means regulating pins are not required. These nuts are turned either clockwise or counterclockwise to adjust the rate of the watch, depending on what is needed. The balance features timing screws plus two microstellar nuts to adjust timekeeping. The main plate features a spotted pattern, and the bridges boast a lightly grained finish. The finishing is nothing to write home about as functionality was definitely at the forefront of the designers’ minds. The 28.2 mm diameter movement features 25 jewels, date display, and overcoil balance spring. When the 1575 was launched it was based heavily on the 1560 but with a few upgrades most notably a four-hour power reserve increase, a frequency increase to 2.75 Hz, and hacking seconds. The 1560 had a frequency of 2.5 Hz and a power reserve of 44 hours. Job done.Ĭaliber 1575 was based upon the Rolex 1560 movement, but improvements were naturally built in. As it movement it doesn’t have a particularly grandiose history Rolex produced it because it needed a reliable, robust automatic watch. That’s quite a feat for a watch of that age different brands’ watches of similar pedigree don’t produce those results many years later that I’ve seen. specifications, meaning to gain two seconds per day. Interestingly, when these movements leave a Rolex service center after an overhaul, they are sent out to run within C.O.S.C. Rolex Caliber 1570 with automatic winding mechanism removed
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |