First Rolex Sky-Dweller Model, 2012 (photo: Rolex)

The 9001 movement that was designed for this model uses a Saros annual calendar to differentiate between the longer or shorter months. It is one of the most complex mechanical watch movements manufactured by Rolex, responsible for telling the time in two locations at once and allowing the wearer to jump from hour to hour to set it without affecting the minute or second hands.

Aside from the technical innovations, the Sky-Dweller offers an interesting design aesthetic that incorporates the fluted bezel of the original Day-Date, a large 42 mm case, a Cyclops magnifying lens and a unique off-center rotating 24 hour disc.

The functionality of this timepiece is accessible to most after a quick study of the crown and bezel. Its size is just large enough to compete with other large luxury watches that dominate the market but small enough to look sophisticated on the wrist.

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