F.P. Journe 770

Calibre 770 is a manual-winding movement manufactured by F.P. Journe. Introduced in 2009, it was the first-generation movement powering the original Chronomètre Bleu in tantalum with its signature chrome blue dial. The movement is entirely in-house and was subsequently replaced by Calibre 1304 in current Chronomètre Bleu production. Production of Calibre 770 has been discontinued.