PATEK PHILIPPE RARE 18K GOLD BACK WINDER.A RARE AND ELEGANT MEN'S 18K YELLOW GOLD BACK WINDER AUTOMATIC BRACELET WATCH. Date: Circa 1968Case reference: 373/1Movement: Signed, automatic, 28-Jewels, Cal.350Dial: Signed, electric blue, gilt applied hour batons, gilt sword hands with luminous insert, gilt centre seconds handCase: Signed, brushed and polished oval shape 18k yellow gold, signed screw down 18k yellow gold back with winding crown, No.269XXXXBracelet: Signed, 18k yellow gold integrated bracelet with a signed folding claspSize: 36mm by 34mm Dimensions 36mm by 34mm.