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Rolex - 1675 - GMT-Master - Mens

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Rolex - 1675 - GMT-Master - Mens

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Name 1675
Family GMT-Master
Gender Mens
Movement Rolex 1575 (Details)
Case Diameter (mm) 40
Lug Width 20
Mechanism Automatic
Chronometer Yes
Hacking Yes
Date Function Yes
Quickset No
Power Reserve (Hours) 42
Frequency (bph) 19,800
Jewel Count 25
Second Hand Sweep
Shape Round
Date Position 3 O'Clock
Crown Position 3 O'Clock
Band Replaceable Yes


Mechanism:
The 1575 is the date version of the 1570. Like many rolex movements the date version will be stamped with the same number as the non-date version. Hence you will see "1570" stamped into most (if not all) 1575 movements. The sure fire way to tell the difference is the presence of the date wheel.

The 1570 movement superseded the 1560, but shared the vast majority of its elements, with a few notable improvements. The 1570 marked the third generation of the 1500 series. It comes with the balance assembly Rolex p/n 8106, again with a Breguet hairspring. However, it’s with a higher frequency of 19,800 bph, or 2.75Hz.

Similarly to its predecessor, Rolex also manufactured it as a date and GMT version, the 1575, which proved the perfect companion to the Explorer II released in 1971, as well as the GMT-Master and Datejust series. As with many of the date equipped mechanism made by Rolex, the number stamped into the metal is the NON-date version. Hence in the case of the 1575, the mechanism will be stamped "1570".

Although there is no Quickset mechanism, the 1500 calibers came with the cam and jewel system. This system was able to create an instantaneous date change at midnight, still used by Rolex today.

Item created by: gdm on 2019-06-12 09:40:56. Last edited by gdm on 2019-06-12 09:42:40

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