What does AP stand for in watches?

Audemars Piguet Royal Oak 56023AC Mens Watch. 36mm 18K yellow gold case. 18K white gold octagon-shaped fixed bezel. Champagne tapisserie dial with gold-tone luminous hands and factor...

Circa 1970s Audemars Piguet Ladies Wrist Watch, 27 x 28 M.M. 18k White Gold 2 piece Case with a Factory set Bezel of prong set Round Brilliant cut Diamonds totaling 1.60 Carats. 20 J...

Audemars Piguet ellipse watch featuring slim 28mm cushion case in 18K yellow gold with champagne gradient dial and Roman numeral markers. Manua...

FACTORY / HOUSE: Audemars Piguet STYLE / REFERENCE: Round Dress Watch METAL / MATERIAL: 18Kt Solid Gold CIRCA / YEAR: 1970's DIMENSIONS / SIZE: Diameter 21mm MOVEMENT / CALIBER: Manu...

Audemars Piguet ladies watch featuring natural lapis lazuli dial in 18K yellow gold cushion case with AP factory calibre-cut diamond bezel. Manual wind movement in running order, integrated woven mesh bracelet, measuring 23 x 20mm, weighing 46.20 grams, includes original signed presentation box. 6.25 inch length. This is one of those unique pieces where there is only one like it in the entire world. The lapis lazuli dial is cut from natural stone, so its color, veining, and inclusions are unique to this piece and can never be replicated exactly. The bezel’s calibre-cut diamonds are also individually selected and precisely matched, meaning the overall pattern and presence are specific to this watch—no two will ever present identically. Product Specifications: Item Type: Ladies Manual Wind Watch Brand: Audemars Piguet Case Number: 53713 Metal: 18K Yellow Gold Case Size: 23 x 20mm Case Shape: Cushion Bracelet Length: 6.25 inches Total Weight: 46.20 grams Dial: Natural Lapis Lazuli Indices: No Markers (Minimalist Design) Movement: Manual Wind Mechanical Bezel Type: Diamond-Set Fixed Bezel Bezel Color: 18K White Gold with Diamonds Band Material: 18K Yellow Gold Woven Mesh Band Color: Yellow Gold High Polish Features: Factory Diamond Bezel, Snapback Case, Crown-Secured Caseback, Gold Pencil Hands, Running Order Style: Vintage Luxury Dress Watch Period: 1960 Condition: Good (see notes) Includes: Original Audemars Piguet Hard Clamshell Presentation Box Diamond Details: Type: Natural White Diamond Cut: Calibré-Cut (Custom Shaped) Average Color: D-E-F Average Clarity: VS Quantity: 25-50 pieces Setting: Prong and Channel-Set in 18K White Gold Lapis Lazuli Details: Gemstone: Natural Lapis Lazuli Cut: Carved and Polished Color: Vivid Royal Blue with Golden Pyrite Flecks Quality: Fine Grade Treatment: Natural (No Enhancement) Design & Construction The 23 x 20mm cushion case showcases Audemars Piguet's refined proportions popular during the 1960s, combining 18K yellow gold case with contrasting 18K white gold diamond-set bezel for elegant two-tone effect. Ap Factory original Calibré-cut diamonds custom-shaped to fit the bezel's curved architecture create continuous sparkle framing the natural lapis lazuli dial, while alternating baguette and square-cut diamonds provide geometric interest. The vivid royal blue lapis lazuli dial features golden pyrite inclusions creating celestial sparkle effect, complemented by slender gold pencil hands that maintain the minimalist aesthetic. Integrated woven mesh bracelet in 18K yellow gold displays basket-weave pattern with substantial flexibility and comfort, secured by foldover clasp marked "AP" with Swiss hallmarks. About Audemars Piguet Vintage Ladies Watches...

Audemars Piguet Royal Oak Offshore chronograph automatic wristwatch in stainless steel featuring signature octagonal bezel with hexagonal screws and blue Tapisserie dial. Number 1116...