The Audemars Piguet Royal Oak Offshore "Scuba Boutique Blue" (Ref. 15701ST.OO.D002CA.02) is a rare, limited-edition timepiece released in 2007, with only 300 units produced worldwide. This model is highly sought after by collectors for its distinctive "Boutique Edition" status and its role as a precursor to the modern Royal Oak Offshore Diver line.

• Case & Dimensions: It features a robust 42mm stainless steel case with a thickness of approximately 12.8mm to 14.2mm, making it more substantial than the classic Royal Oak.

• Dial & Aesthetics: The watch has a black "Méga Tapisserie" dial with Arabic numerals and a date window at 3 o'clock. It is distinguished by a vibrant blue inner rotating timing rehaut (the "Blue Edition" element) operated by the crown at 10 o'clock.

• Movement: Powered by the self-winding Calibre AP 2325, it offers a power reserve of approximately 38 to 40 hours and a frequency of 28,800 vph.

• Water Resistance: Built for diving, it is water-resistant up to 300 meters (1,000 feet) and includes a screw-locked crown.

• Strap: Typically paired with a black rubber strap or a dark blue white-stitched hornback alligator leather strap, both featuring a stainless steel folding clasp.