Audemars Piguet Royal Oak Royal Oak 15400 Stainless Steel / Grey

Reference 15400ST.OO.1220ST.04

About this watch

The Audemars Piguet Royal Oak 15400ST.OO.1220ST.04 is a masterpiece of luxury watchmaking that embodies sophistication and intricate engineering marvels. With its bold 41mm diameter stainless steel case, the watch strikes a perfect balance between presence and wearability. The integrated bracelet features brushed and polished surfaces that create a stunning contrast, catching the light beautifully. The dial's Grande Tapisserie pattern is a signature element that sets this watch apart from others in its class, with a grey color exuding sophistication and intricate texture adding depth and character. The AP 3120 automatic movement boasts precision timekeeping and a 60-hour power reserve, making it a reliable companion for everyday wear. With a water resistance of 50 meters, the Royal Oak 15400 can handle splashes and brief immersion. This watch is not just a statement but also an investment in quality and craftsmanship, with luxury watches from reputable brands like Audemars Piguet retaining value over time.
Buy Now on Jomashop
This is an affiliate link
MSRP: $18,400
Market Price: $31,362

Key Features

  • 41mm diameter stainless steel case
  • Integrated bracelet with brushed and polished surfaces
  • Grande Tapisserie dial pattern with grey color
  • AP 3120 automatic movement with precision timekeeping
  • 60-hour power reserve
  • Water resistance of 50 meters
  • In-house caliber AP 3120 with 280 total parts

Specifications

Brand
Audemars Piguet
Family
Royal Oak
Model
Royal Oak 15400 Stainless Steel / Grey
Reference
15400ST.OO.1220ST.04
Movement
ap-3120
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 41mm
Dial Color
Grey
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $315

1988 Seiko Quartz Chronograph “Royal Oak” Ref. 7A38-7280 | $315

Seiko - 7A38-7280 · $315
The Seiko Quartz Chronograph Ref. 7A38-7280 is a two-tone, angular watch inspired by the Royal Oak design, powered by the jewelled and fully serviceable caliber 7A38 quartz movement.

  • Condition: Good condition for its age with some markings on the case and bracelet
  • Movement Type: quartz
  • Jewels: 15
Posted at
Jan 5, 2026, 12:38 PM
Active
[WTS] Seiko AP Royal Oak

Seiko AP Royal Oak

Seiko · $199
a listing for a Seiko AP Royal Oak but this appears to be incorrect as there is no such model from Seiko, it is actually the Audemars Piguet Royal Oak which is not made by Seiko and the correct price and features are unknown. The seller claims it works as expected.

  • Condition: Working as it should
  • Payment methods: Venmo, PayPal
Posted at
Jan 4, 2026, 4:02 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

This watch is a strong, attention-grabbing piece from AP with a beautiful rose gold and black ceramic design. It features a smoked grey dial and comes in its original outer box, inner wood box, booklets, and warranty card.

  • Condition: like new
  • Case Size: 44mm diameter
  • Movement Caliber: 3126/3840
  • Power Reserve: 50 hours
Posted at
Jan 2, 2026, 8:42 AM
Active
[WTS] Audemars Piguet Royal Oak Chronograph Yellow Gold Green Dial 41mm 26331BA.OO.1220BA.02

Audemars Piguet Royal Oak Chronograph Yellow Gold Green Dial 41mm 26331BA.OO.1220BA.02

This stunning Royal Oak shines in yellow gold with a rich green dial, one of only 125 pieces ever made.

  • Condition: like new
  • Case Size: 41mm diameter
  • Case Thickness: 11mm height
  • Movement Type: Mechanical (Automatic)
Posted at
Jan 2, 2026, 8:37 AM
Active
[WTS] Audemars Piguet Royal Oak Chronograph 41mm Rose Gold Brown 26331OR

Audemars Piguet Royal Oak Chronograph 41mm Rose Gold Brown 26331OR

A Royal Oak Chronograph in rose gold with a brown dial and 41mm case, featuring a self-winding chronograph movement.

  • Condition: Excellent condition with light wear on the case, bezel, and clasp
  • Case size: 41mm diameter
  • Movement type: selfwinding chronograph
  • Power reserve: 40 hours
Posted at
Jan 1, 2026, 4:28 PM
Active
[WTS] Audemars Piguet AP Royal Oak Tapisserie Octagon Key Ring (Keychain) Silver Pre-Owned, see pics for condition

Audemars Piguet AP Royal Oak Tapisserie Octagon Key Ring (Keychain) Silver Pre-Owned, see pics for condition

Audemars Piguet - null · $7,500
  • Model type: Royal Oak Tapisserie Octagon Key Ring (Keychain)
  • Material: Silver
Posted at
Jan 1, 2026, 9:36 AM
Active
[WTS] [US] Audemars Piguet Royal Oak Selfwinding 39mm Rare Blue Dial Stainless Steel 15300st

[US] Audemars Piguet Royal Oak Selfwinding 39mm Rare Blue Dial Stainless Steel 15300st

The watch is an Audemars Piguet Royal Oak Selfwinding 39mm with a rare blue dial and stainless steel case.

  • Case material: Stainless Steel
  • Diameter: 39mm
Posted at
Dec 30, 2025, 2:55 PM
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

The Audemars Piguet Royal Oak Offshore Bleu Nuit Nuage 50 is a bold design with an unmistakable Offshore character, featuring a 42mm case and in-house flyback chronograph movement.

  • Condition: Like new
  • Case size: 42 mm
  • Case material: Blue ceramic with titanium caseback
  • Dial color: Blue
Posted at
Dec 30, 2025, 9:01 AM
Active