Jaeger LeCoultre Master Ultra-Thin Perpetual Calendar 39mm | Q1308470Polished stainless steel case. Black dial with a fine sunray finish. Slightly stepped down black sub dials. Applied polished index hour markers. Polished hands. Perpetual calendar features: Automatically calculates the day, date, month, year and phase of the moon correctly until March 1st 2100, the movement requires a correction only once every 122 years. Day of the week sub dial located at the 9 o'clock position. Date of the month of the week sub