Case material: Yellow gold; Charge: Manual; Conditions: New Presentation condition : With boxes and all papers; Model: Royal Oak Price on request Gmtbroker Reference: 25977ba.oo.1205ba.02 Audemars Piguet 25977ba.oo.1205ba.02 Complete Details: This watch features: Satin/Brushed finished 18kt yellow gold case & bracelet with polished finished edges & beveled edges. Silvered "waffle" tapestry design dial. Applied yellow gold applied index hour markers & hands with luminescent fill. 1 minute Tourbillon located at the 6 o'clock position. 30 minute chronograph/Stop-Watch function: Central seconds counter & 30 minute sub-dial counter located at the 3 o'clock position. The chronograph function is fitted with titanium lever in the mechanism, thus eliminating the phenomenon of the "jumping chronograph hand" when starting the chronograph function. Small seconds sub-dial at the 9 o'clock position. AP caliber 2889 beats at 21,600 vph & contains 25 jewels with an approximate Power Reserve of 70 hours. The mainplate & bridges are made of Nickel Silver - an alloy which resists oxidations & remains stable over long periods of time. Featured Complications: Chronograph | Tourbillon This watch is also known as 25977baoo1205ba02