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5  of these sold for an average price of: 39,549.0039,549.005 of these sold for an average price of: 39,549.00
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Rolex - 18946 - Day-Date - President - Mens
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Name18946
FamilyDay-Date
SubtypePresident
GenderMens
MSRP97,300.00
MovementRolex 3155 (Details)
Years in Production1990 - 1991
Case Diameter (mm)39
Lug Width20
MechanismAutomatic
ChronometerYes
HackingYes
Date FunctionYes
QuicksetYes
Power Reserve (Hours)48
Frequency (bph)28, 800
Jewel Count31
Second HandSweep
Case MaterialPlatinum
ShapeRound
Bezel MaterialDiamonds
Hour MarksDiamonds
Day Position12 O'Clock
Date Position3 O'Clock
Crown Position3 O'Clock
Crystal MaterialSapphire
Band TypeBracelet
Band ColorSilver Tone
Band MaterialPlatinum
Band ReplaceableYes


Notes: Another fancy Day-Date. This model features a platinum case and platinum 3-link bracelet. There is a ring on diamonds on the bezel. The dial comes in glacier blue, black, silver and some other oddball patterns and colors. The dial can feature diamonds as hour marks or roman numerals. In some cases the diamond hour marks appear in ten locations (all hours except 3 and 12) and in others, only two special teardrop diamonds appear - at the 6:00 and 9:00 positions.
Mechanism:
The Rolex 3155 was the sixth-generation Day-Date movement from Rolex. Calibre 3155 is a self-winding mechanical movement entirely developed and manufactured by Rolex (actually Aegler, but who really cares?) . It features a day and date calendar disc mechanism. Like all Rolex Perpetual movements, the 3155 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

Caliber 3155 stands at 6.00mm tall and features 31 jewels. It was introduced in 1988. It is based on the calibre Rolex 3135, with additional day of week indication. Cal. 3155 is used in the Day-Date Ref. 118000 and remains in production as of 2018. The similar Rolex 3156 was used in the Rolex Day-Date II. The new Rolex Day-Date 40, launched in 2015, uses the next-generation Cal. 3255.

Like most modern Rolex movements, this model has a hacking capability. It is also the first Rolex movement with the double-quickset feature.
Family Notes: The Rolex Day-Date was introduced in 1956. It soon became known as the "Rolex President". It was unofficially renamed after President Eisenhower became associated with this model watch. This association was made as the watch was known to have been worn by LBJ and shared a scandalous connection to JFK. Since then it has earned the vote of a diverse array of potentates, including Warren Buffett, Jay Z, and (fictional character) Tony Soprano. In 1977, Rolex started using the new (at the time) 3055 movement for the Day-Date/President line. As of 2018, the Day-Date 40 uses the 3255 movement.
Item created by: gdm on 2018-10-18 21:05:39

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