Patek Philippe 5146J Box & Cert. The Patek Philippe Annual Calendar (ref. 5146J) features a mechanical automatic movement; greyish dial; annual calendar complication with displays for the day and month by hands, while the date and moon phase are shown in apertures; power reserve indicator; center seconds hand; sapphire crystal, transparent case back; and 39mm, 18k yellow gold case on a black alligator strap with an 18k yellow gold deployant clasp. The Patek Philippe 5146J's movement is composed of over 355 parts, which together power its annual calendar and moon phase complications. Complications: Annual Calendar, Date, Moon Phases, Power Reserve, Center Seconds Hand.