This is a PATEK PHILIPPLE Ref.3800/1G Calibre:335SC Self-winding watch. First Generation 'NAUTILUS', Excellent + Condition, well maintained. Of course, It is White Gold 750 Case with Bracelet ! Very Rare as last show up in CHRISTIE in 2008 for HKD$187,000.
If you miss the 3711 Jumbo size. which is beleive less than 100 pieces. This is the 36.5mm Man's Large size Watch.
Gerald Genta is the Designer for this Greatest sport watch design of Patek Philippe in 1976 after his most sucessful design of AP Royal Oak in 1972.
See their outlook comparison between these great watches!
HK Snob