Each of the four dials is studded with 98 million glass mosaic tessera. The largest tower clock in the world has been ticking away above the Masjid al Haram Mosque since August 2010: 80 m high, 65 m wide, the dials are 39 m in diameter. Only the Burj Chalifa in Dubai is even higher at 830 metres. When it is completed this year, the Royal Clock Tower Hotel will for some time be the second highest building in the world. The tower resembles London’s Big Ben, but is six times as high as the original. Floor area: 1.5 km², 96 floors and a 601 metre high clock tower as the crowning touch. The hotel and luxury residential complex Abraj al-Bait, also known as “Royal Clock Tower Hotel”, is being constructed right in the centre of the city. Mecca is not just Islam’s holiest city, but at present also one of the largest building sites in the world. Double girder overhead travelling craneįormidable time pressure, tight schedule: in collaboration with project partner Prime Source, STAHL CraneSystems Dubai supplied 23 wire rope hoists to Mecca for the largest clock tower in the world.Single girder overhead travelling crane.Explosion-proof wire rope hoists | winches.

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