Platinum case. Black calfskin strap with clasp buckle. Fixed bezel. Ebony black sunburst dial displaying sweep seconds, luminous hands and Arabic numeral hour markers. Analog functions: hours, minutes, seconds, date at 6 o'clock position. Patek Philippe Calibre AL 30-660 S C FUS automatic movement featuring manual winding capability. Sapphire crystal with scratch resistance properties. Transparent sapphire case back. Round case shape measuring 42.2 mm diameter and 11.6 mm thickness. Clevis prong for strap attachment. Water resistant to 30 meters / 100 feet depth. Includes alarm function, selectable on/off; day/night indication in apertures for local time and home time zones (local/local or night/day). Two distinct time zone indications: local and reference city times displayed simultaneously.
![Patek Philippe NAUTILUS Automatic Blue Dial Unisex Watch [ref]5711-1A-010[/ref]](https://cdn.lepodium.net/images/000/087/87561-2.jpg)
