Chronomat 44

The Chronomat 44 ref. AB0110 was the first Breitling to carry the in-house Calibre B01, introduced in 2009 — a 44 mm steel chronograph with the rider-tab unidirectional bezel and rouleaux bracelet. The COSC-certified automatic B01 is a column-wheel, vertical-clutch chronograph with about a 70-hour…

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