Patek Philippe Perpetual Calendar 2438/1

RETAILED BY TIFFANY&CO: A FINE AND VERY RARE CENTRE SECOND 18K YELLOW GOLD PERPETUAL CALENDAR WRISTWATCH WITH MOON-PHASES REF 2438/1 MVT 888141 CASE 2602741 MADE IN 1958 yellow gold diameter 37 mm thickness 13 mm , • cal.27SCQ, nickel lever manual 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 baton numerals, blued steel centre seconds hand, apertures for day and month, subsidiary dial for date combined with aperture for moon-phases, outer divisions calibrated for seconds • 18k gold case with scooped bezel, stepped down-turned lugs, screw-down case back • case, dial and movement signed