Rolex. An attractive 18K gold automatic calendar wristwatch with sweep centre seconds and black hard-stone dial

Rolex. An attractive 18K gold automatic calendar wristwatch with sweep centre seconds and black hard-stone dial
Signed Rolex, Oyster Perpetual, Day-Date, Ref. 18038, case no. 6'193'428, manufactured in 1980
Cal. 3035 automatic movement, 27 jewels, black hard-stone dial, applied gold Roman numerals, sweep centre seconds, aperture for day, magnified window for date, tonneau-shaped water-resistant-type case, fluted bezel, screw back, screw down crown, case, dial and movement signed
36 mm. diam.