Patek Philippe, Steel And Gold Nautilus Automatic Wristwatch, Ref. 3800/1 Case: 37 mm, stainless steel and 18k gold, two body, gold bezel, polished and brushed, 2811012 Dial: blue/black, luminous gold applied baton indexes, date aperture at three, gold baton hands Movement: Patek Philippe Cal. 335 SC, automatic, 29 jewels, monometallic balance adjusted to heat, cold, isochronism and five positions, No. 1424974 Band: stainless steel and 18k gold, deployant clasp with flip lock, 7 5/8th inches Signed: Patek Philippe on the case, dial, movement and clasp HID03101062020 © 2020 Heritage Auctions | All Rights Reserved