Audemars Piguet Royal Oak Selfwinding Watch - 41mm - Stainless Steel - Grey Dial - Calibre 4302 - 15500ST.OO.1220ST.02 Ceramic Engine powering this timepiece is

Engine powering this timepiece is mechanical self-winding Chronometer OMEGA Co-Axial calibre 8601

CROWN Screw Down BEZEL Rose Gold MOVEMENT Automatic DIAL HANDS Luminous DIAL COLOR Silver DIAL TYPE Analog DATE AT 3 o'clock DIAL MARKERS Grande Tapisserie BRACELET Rose Gold/Steel CLASP AP Folding Clasp WATER RESISTANCE 50 Meters (165 Feet) GENDER Unisex

Triple folding buckle clasp

I do not have extra links

Calibre 3120 selfwinding movement with dive-time measurement

Audemars Piguet Royal Oak Selfwinding Watch - 41mm - Stainless Steel - Grey Dial - Calibre 4302 - 15500ST.OO.1220ST.02 Ceramic Engine powering this timepiece is41 mm stainless steel case, 10. 4 mm thick, sapphire crystal back, glareproofed sapphire crystal, slate grey dial with Grande Tapisserie pattern, white gold applied hour markers and Royal Oak hands with luminescent coating, Calibre 4302 selfwinding movement with hours, minutes, centre seconds and date, approximately 70 hours of power reserve, stainless steel bracelet, AP folding buckle. Water resistant to 50 m.