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The Encyclopedia of Horology

Wristwatch · Quartz wristwatch

Audemars Piguet Royal Oak Quartz Ref. 56303ST

Partially verified

This stainless steel Royal Oak, reference 56303ST, is a quartz-powered wristwatch attributed to the 1990s. The watch features a 33mm stainless steel case integrated with a matching steel bracelet. The dial is black with a tapisserie finish and tritium-lumed hour markers and hands. The construction incorporates an octagonal bezel secured by screws, maintaining the design language associated with the Royal Oak line. The movement is a quartz caliber. The watch is presented with its factory-finished case, which retains beveled edges and brushed surfaces on the case and bracelet links. According to the provided information, the watch accommodates a wrist of approximately 7 inches and has undergone a battery replacement. and an unsigned octagonal crown.

Frontal view of the Audemars Piguet Royal Oak reference 56303ST showing the black tapisserie dial, octagonal bezel with screws, and integrated stainless steel bracelet.
Frontal view of the Audemars Piguet Royal Oak reference 56303ST showing the black tapisserie dial, octagonal bezel with screws, and integrated stainless steel bracelet. — Craft & Tailored. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
craftandtailored.com
Category
Wristwatch · Quartz wristwatch
Maker / attribution
Audemars Piguet
Reference
56303ST
Catalogue / lot identifier
AP56303ST
Source-reported date
1990s
Source-reported place
Not established
Source-reported serial
33X

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Bracelet Construction

The stainless steel case measures 33mm in diameter. It is constructed with an octagonal bezel secured by screws and maintains a finish that includes both brushed surfaces and polished, beveled edges. The integrated bracelet is composed of matching stainless steel links.

The caseback features factory engravings. The bracelet consists of 20 links and is reported to have minimal stretch, with a capacity to fit a wrist of approximately 7 inches. The crown is octagonal in shape and is unsigned.

Evidence for this section
  • “The octagonal bezel remains in excellent condition, displaying distinct edges, strong finishing, and only light wear.”
  • “The integrated bracelet retains 20 links, exhibits almost no stretch, and accommodates a wrist of approximately 7 inches.”
  • “The unsigned octagonal crown is original to the watch.”

Dial and Hands

The dial is black and features a tapisserie texture. It is set with hour markers and hands that contain tritium luminous material, which has developed a cream-colored patina.

The dial is signed with the Audemars Piguet name and logo, and marked 'SWISS MADE' at the bottom. The condition of the dial is described as virtually perfect, showing no degradation under UV light inspection.

Evidence for this section
  • “The original black tapisserie dial is simply stunning and remains in virtually perfect condition, with no damage or age present.”
  • “The tritium lume within the dial markers and within the hands has achieved a matching cream patina and exhibits no degradation under UV light inspection.”

Movement and Maintenance

The watch is powered by a quartz movement, introduced into the Royal Oak line during the late 1980s. These models are characterized by an ultra-thin design profile.

The auction description reports that the watch has been fitted with a new battery and is currently functioning to keep time.

Evidence for this section
  • “Audemars Piguet introduced a new line of mid-size Royal Oaks featuring quartz movements.”
  • “The watch just received a new battery and is keeping time perfectly.”

Open research questions

  • What is the specific quartz caliber powering this reference?
  • Can the '33X' serial number be cross-referenced to narrow the production year within the 1990s?

Source evidence

Recorded claims and source quotations for Audemars Piguet Royal Oak Quartz Ref. 56303ST
FieldSource-reported valueSource quotation
BrandAudemars Piguet“Brand Audemars Piguet”
Model56303ST“Model 56303ST”
Serial33X“Serial No. 33X”
MaterialStainless Steel“Material Stainless Steel”
DialBlack Tapisserie“Dial Black Tapisserie”
Size33mm“Millimeters 33”
Bracelet lengthApproximately 7 inches“accommodates a wrist of approximately 7 inches.”
Movement typeQuartz“Audemars Piguet introduced a new line of mid-size Royal Oaks featuring quartz movements.”

Visible details

  • Black tapisserie patterned dial
  • Octagonal bezel with exposed screws
  • Integrated stainless steel link bracelet
  • Luminous material on hands and indices

Research qualifications

  • The exact year of manufacture is estimated as 1990s
  • The specific caliber of the quartz movement is not identified in the source

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی Audemars Piguet Royal Oak Quartz رفرنس 56303ST صفحه مشکی، دهه ۱۹۹۰

Reviewed 2026-11-02 · Record def6342b20

Terms in this record

Glossary explanations for terms named in this object’s record.

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