Audemars Piguet Royal Oak 18K Rose Gold

DETAILS
Manufacturer: Audemars Piguet
Model: Royal Oak 
Reference Number: 15400OR.OO.D088CR.01     
Movement: Automatic
Condition: Mint
Gender: Men’s/unisex
Time Period: n/a 
Retail / Compare-At Price: $32,000
Our Best Price: $26,240

CALIBER
Movement: -
Caliber: 3120
Jewels: 40

CASE
Case Material: 18K rose gold
Case Diameter: 41 mm 
Thickness: 9.8 mm
Waterproof: 165 ft. / 50 m.
Water Resistance: 5 ATM
Material Bezel: Fixed 18K rose gold with white gold screws
Glass: Non reflective sapphire crystal
Dial: Silver-toned dial with waffle “Grande Tapisserie” decoration
Dial Numerals: 18K rose gold applied with luminescent coating faceted baton hour indices, track around the outer rim with second and minute divisions

BRACELET / STRAP
Bracelet color: Brown 
Bracelet Material: Leather 
Clasp: Fold-over
Clasp material: 18K rose gold

FUNCTIONS
Hours, minutes, center sweep seconds, date aperture at 3 o'clock, 60-hour power reserve

OTHERS
Octagonal shape case designed by Gerald Genta
18K rose gold applied and luminescent coating Royal Oak hours/minutes hands, rose gold stick-shaped center sweep seconds hand
18K rose gold rectangular chronograph pushers
Sapphire crystal display case back secured with eight screws
18K rose gold screw-down hexagolal crown with AP engraving
The three-body case, lugs, and flat bezel are polished/brushed.
The caliber 3120 movement has a total of 280 parts, it is rhodium-plated with fausses côtes embellishment. It's constructed with a straight-line lever escapement, and a shock absorber mechanism. It has a suspended barrel, and the oscillating weight has an annular ring that runs on four jewels. It has a monometallic Gyromax balance that's adjusted for heat, cold, and 5 positions.
There is a self-compensating flat balance-spring, an engraved yellow gold rotor with a coat of arms, a variable inertia block balance, and a central hacking seconds mechanism. The rotor in 22K gold, is mounted on ceramic ball bearings.
This mechanism oscillate at a frequency of 21,600 vhp (3Hz)
Series "I"
Case, dial, and movement are all signed.
Incomplete (no box, no papers)