Audemars Piguet Royal Oak Royal Oak 15500 Stainless Steel / Blue

Reference 15500ST.OO.1220ST.01

About this watch

The Audemars Piguet Royal Oak 15500ST.OO.1220ST.01 embodies tradition and modernity, making it a coveted piece for collectors and enthusiasts alike. This stunning watch features a polished stainless steel case with a radiant sheen, a blue guilloche dial, and a seamless integrated stainless steel bracelet. The automatic AP 4302 movement is an marvel with 32 jewels, a frequency of 28,800 vibrations per hour, and a power reserve of 70 hours. This watch is packed with functionality, featuring hours, minutes, seconds, and a date function, as well as 50-meter water resistance. When you invest in an Audemars Piguet, you're acquiring a piece of history and craftsmanship, renowned for its exceptional quality and limited production. The Royal Oak stands out due to its unique design and heritage, making it a bold statement piece for the discerning collector. This watch is versatile enough for daily wear but also makes a significant statement during special occasions. Its striking aesthetics, reliable movement, and luxurious feel make it a worthy addition to any collection.
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MSRP: $27,800
Market Price: $34,888

Key Features

  • 41mm diameter stainless steel case
  • Blue guilloche dial with stick hands
  • Automatic AP 4302 movement with 32 jewels and 70-hour power reserve
  • 50-meter water resistance
  • Integrated stainless steel bracelet
  • Date function and hours, minutes, seconds display
  • Limited production and exceptional craftsmanship

Specifications

Brand
Audemars Piguet
Family
Royal Oak
Model
Royal Oak 15500 Stainless Steel / Blue
Reference
15500ST.OO.1220ST.01
Movement
ap-4302
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Blue
Crystal
Sapphire
Water Resistance
50

Current Listings

Audemars Piguet Royal Oak 41mm Blue Dial 15500ST � 2021

Audemars Piguet Royal Oak 41mm Blue Dial 15500ST � 2021

This is an unpolished Audemars Piguet Royal Oak 41mm Blue Dial watch that features a sought-after blue dial. It comes with boxes, booklets, warranty card, and was originally sold in October 2021.

  • Condition: Excellent, with a few faint hairlines and marks on the case, small marks and swirls on the bracelet, and light marks and hairlines on the brushed face.
  • Case size: 41mm
  • Diameter: 41mm
Posted at
Jan 22, 2025, 4:36 PM
Active
[WTS] 1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $305

1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $305

Seiko - 7A38-7280 · $305
The watch is a two-tone, angular, Royal Oak-inspired chrono powered by one of the best quartz movements ever made. It has a slim, sharp design that's more refined than most people would expect from a Seiko. The 7A38-7280 is pure 80s Seiko flex with real horology behind it.

  • Condition: Good condition for its age with some markings on the case and bracelet, mineral crystal in good shape
  • Case Size: 37.3 x 41.5mm
  • Movement Type: quartz
  • Jewels: 15
Posted at
Jan 15, 2026, 5:15 PM
Active
[WTS] 2021 Audemars Piguet Royal Oak Offshore Chrono "The Beast" 42mm 26238ST Blue Dial - $36,900

2021 Audemars Piguet Royal Oak Offshore Chrono "The Beast" 42mm 26238ST Blue Dial - $36,900

2021 Audemars Piguet Royal Oak Offshore Chronograph 42mm with a blue dial and stainless steel case.

  • Box: true
  • Papers: true
  • Manual: true
Posted at
Jan 15, 2026, 3:27 PM
Active
[WTS] Audemars Piguet Royal Oak Offshore "Vampire" 26470ST - Mint

Audemars Piguet Royal Oak Offshore "Vampire" 26470ST - Mint

The watch is an Audemars Piguet Royal Oak Offshore with a black Méga Tapisserie dial and blood-red chronograph accents, powered by the Calibre 3126/3840 self-winding movement.

  • Condition: Excellent
  • Movement: Calibre 3126/3840 self-winding (automatic)
  • Functions: chronograph, date, hours/minutes/seconds, small seconds
  • Power reserve: 50 hours
Posted at
Jan 13, 2026, 11:21 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 26238CD.OO.1300CD.01 Complete Set

This Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 features a bold design, ceramic build, and in-house flyback chronograph movement. The 42 mm case delivers classic power in a modern form.

  • Condition: like new
  • Case size: 42 mm
  • Movement caliber: Calibre 4404
  • Power reserve: 70 hours
Posted at
Jan 13, 2026, 8:25 AM
Active
[WTS] Audemars Piguet Royal Oak Offshore Blue Dial - 25721ST.OO.1000ST.09 The BEAST!

Audemars Piguet Royal Oak Offshore Blue Dial - 25721ST.OO.1000ST.09 The BEAST!

The Audemars Piguet Royal Oak Offshore has a blue dial, white accents, and full bracelet giving it a unique presence.

  • Box: true
Posted at
Jan 10, 2026, 9:41 AM
Active
[WTS] 2017 Audemars Piguet Royal Oak Offshore Diver 42MM White Dial Rubber Strap 15710ST.OO.A002CA.02

2017 Audemars Piguet Royal Oak Offshore Diver 42MM White Dial Rubber Strap 15710ST.OO.A002CA.02

This is a 2017 Audemars Piguet Royal Oak Offshore Diver in stainless steel with a white dial, on a rubber strap.

  • Condition: near-mint condition with almost zero wear
  • Case size: 42mm
  • Case material: stainless steel
  • Dial color: white
Posted at
Jan 9, 2026, 10:15 PM
Active
[WTS] Audemars Piguet Royal Oak Offshore 43MM “Smoked Taupe” - Ref 26420SO.OO.A600CA.01 (EXCELLENT 2022 COMPLETE SET)

Audemars Piguet Royal Oak Offshore 43MM “Smoked Taupe” - Ref 26420SO.OO.A600CA.01 (EXCELLENT 2022 COMPLETE SET)

A 43MM Audemars Piguet Royal Oak Offshore in smoked taupe, featuring a factory warranty intact until 2027 and included with outer box, inner box, manuals, and unworn strap.

  • Condition: Excellent pre-owned
  • Case size: 43mm diameter
  • Water resistance: 50m depth rating
Posted at
Jan 9, 2026, 5:09 PM
Active
[WTS] Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Ceramic Rose Gold Grey Dial 44mm Box & Papers 26405NR.OO.A002CA.01

The watch is a 44mm rose gold and black ceramic masterpiece from AP, featuring a smoked grey mega tapisserie dial, mechanical movement, and 100m water resistance.

  • Condition: Like new
  • Movement Caliber: 3126/3840
  • Case Size: 44mm diameter
  • Water Resistance: 100m (10ATM)
Posted at
Jan 9, 2026, 8:10 AM
Active