Stainless steel round case, brown hand-stitched calfskin strap. Brown opaline dial with silver-tone baton hands and hour/index markers. Weekdays displayed at the center, months shown around the outer perimeter. Equipped with Patek Philippe Calibre 26-330 S C J SE automatic movement featuring 50 jewels, 304 parts, 28,800 vph frequency, and 45-hour power reserve. Includes screw-down winding/crown, sapphire crystal glass (both front and back), date display at the 3 o'clock position. Calendrical complication showing weekly calendar until January next year. Water resistant to 100 feet.
![Patek Philippe NAUTILUS Automatic Blue Dial Unisex Watch [ref]5711-1A-010[/ref]](https://cdn.lepodium.net/images/000/087/87561-2.jpg)
