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The Zenith Chronomaster Sport 30.3101.3600-1/76.M3100 was released in 2025 as a Japan-exclusive execution within the Chronomaster Sport collection. The reference is defined by the use of a meteorite dial combined with an 18-carat yellow-gold case and bracelet. The watch is housed in a 41 mm case crafted from 18-carat yellow gold and is rated to 100 metres of water resistance. The case and bracelet follow the standard Chronomaster Sport architecture, with alternating brushed and polished surfaces and an integrated bracelet secured by a folding clasp. The dial is manufactured from natural meteorite, resulting in a crystalline surface pattern that varies from piece to piece. Applied hour markers and hands are mounted above the meteorite base. The chronograph layout consists of three sub-dials and a central chronograph seconds hand. Powering the watch is the automatic El Primero 3600 calibre. The movement operates at a frequency of 36,000 vibrations per hour (5 Hz) and enables direct 1/10th-of-a-second chronograph measurement. It offers a power reserve of approximately 60 hours and displays hours, minutes, small seconds, date, and