Patek Philippe Perpetual Calendar 2438/1

AN IMPORTANT AND RARE YELLOW GOLD CENTRE SECOND PERPETUAL CALENDAR WRISTWATCH WITH MOON PHASES AND BRACELET REF 2438-1 MVT 888108 CASE 687973 MADE IN 1954 Gold diameter 37 mm bracelet circumference approx. 195 mm , • cal. 27SCQ, manual winding nickel lever movement stamped with the Geneva seal, 18 jewels, bi-metallic compensation balance, adjusted to heat, cold, isochronism and 5 positions, precision regulator • silvered dial, applied faceted pointed baton indexes, gold dauphine hands, blued steel centre seconds hand, apertures for day and month at 12 in German , subsidiary dial for date combined with aperture for moon phases, outer divisions calibrated for seconds • 18k yellow gold polished case with scooped bezel, stepped down-turned lugs, screw-down back • case, dial and movement signed • with an 18k yellow gold Patek Philippe bracelet