This very rare Patek Philippe Nautilus Moonphase Power Reserve Ref:3712/1A-001 is rated 9.8 out of 10. It comes with tag, setting pin, box and unnamed, undated paper. Also with extract of archive from Patek Philippe.
Ref. 3712 – featuring a power reserve indicator, analog date and moon phases. To power the watch the 240 PS automatic movement with a gold micro-rotor and sapphire crystal to display the beautiful calibre.
Reference 3712 produced for just one year – 2005