IWC Portuguese Perpetual Calendar Watch. This watch features Solid 18kt Rose Gold case with polished finished bezel & lugs and fine-brushed finished edges. Silver dial. Embossed, raised Rose Gold colored Arabic Numeral hour markers & dot minute markers. Elegant leaf-shaped polished rose gold hands. Perpetual Calendar with year display: Day of the week indicated on the outside perimeter of the sub-dial at the 9 o’clock position, Date indicated on the outside perimeter of the sub-dial at the 3 o’clock position, Month indicated at the sub-dial at the 6 o’clock position, and Current year displayed in a full 4 digit format with a window between the 7 & 8 o’clock position. Moonphase: Displayed at sub-dial at the 12 o’clock position. Indicated by a rose gold colored full moon display on a rotating deep blue disc with small gold stars. Power Reserve Indicator: This watch features an impressive 7-Day Power Reserve, indicated by a hand at the center of date sub-dial at the 3 o’clock position. Small running seconds hand indicated by a hand at the center of day sub-dial at the 9 o’clock position. IWC Caliber 51613, beats at 21,600 vph, contains 62 Jewels & has an impressive power reserve of 7-Days (168 hours) hours.