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Clock Gears

ROLEX & THE SKY-DWELLER

The Ring Command System

  • POSITION 0 – you cannot change the time, date, month, nor the 24-hour GMT disc.

  • POSITION 1 – used for setting the month and date

  • POSITION 2 – used for setting the local time

  • POSITION 3 – used for setting the reference time

Setting the Month and Date

  1. Unscrew the winding crown and then pull it out to the first notch.

  2. Rotate the bezel to position 1.

  3. Set the month by turning the crown in either direction. Cycle through the dates and months until you reach the current month, which is indicated by a contrasting color in one of the 12 windows located around the circumference of the dial: January at 1 o’clock, February at 2 o’clock, etc. with December at 12 o’clock.

  4. Set the date of the current month by turning the crown in either direction until the correct date is displayed in the window.

  5. Return the bezel to position 0 by turning it clockwise as far as it will go.

  6. Push in and screw down the crown.

Setting the Local Time

  1. Setting the reference time (hour on the 24-hour disc and minutes shown by the center minute hand) also moves the hour hand that displays the local time. For this reason, the reference time must be set before setting the local time.

  2. Unscrew the winding crown and then pull it out to the first notch.

  3. Rotate the bezel to position 2.

  4. Set the local time (displayed by the jumping hour hand) by turning the crown in either direction. The 24-hour disc and the minute hand will not move. Only the hour hand moves in one-hour increments. The date changes when the hour hand passes midnight, only in the clockwise direction.

  5. Return the bezel to position 0 by turning it clockwise as far as it will go.

  6. Push in and screw down the crown.

Setting the Reference Time

  1. Unscrew the winding crown and then pull it out to the first notch.

  2. Rotate the bezel to position 3 by turning it counter-clockwise as far as it will go. The seconds hand will stop, allowing you to set the time to the precise second.

  3. Set the hour on the 24-hour disc and the minutes shown by the centre minute hand by turning the crown in either direction.

  4. Return the bezel to position 0 by turning it clockwise as far as it will go.

  5. Push in and screw down the crown.


Rolex Sky Dweller with a black dial and a steel and 18ct yellow gold case

The Saros Annual Calendar


Impressively, only two gear ratios and four gear wheels were added to the traditional Rolex date calendar system to make for a full annual calendar. Labelled SAROS after the Greek term for the eighteen year cycle between the Sun, the Earth, and the Moon that is responsible for both lunar and solar eclipses. The SAROS annual calendar mechanism is designed around a fixed planetary gear wheel "the Sun" at the centre of the movement. A satellite wheel "the Earth" engages the planetary wheel once a month, driven by the date disc. Finally the satellite wheel "the Moon" is fitted with four fingers, for each of the four 30-day months (April, June, September, and November). Ultimately, this means that you only need to change the date once a year (on March 1st) if you keep the Sky-Dweller perpetually running.

 

Available Now


Celebrating over a decade of ingenuity, the Rolex Sky-Dweller is available in Oystersteel and Yellow Gold with a Jubilee bracelet, Ring Command fluted bezel and a striking black dial. One for those who are always on the go. You can check out this fantastic timepiece in the link below:



Rolex Calibre 9001 movement for the Sky-Dweller

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