Patek Philippe · Manual Wind

CHR 27-70 Q

Patek's split-seconds chronograph, built on the Lemania 2310 ébauche — the same base under the standard CH 27-70 — with rattrapante works and a perpetual calendar added and all 407 parts finished in-house. CHR marks the split-seconds, Q the quantième perpétuel. It powered reference 5004 from 1996, a watch Patek could assemble at a rate of only about a dozen a year.