Audemars Piguet Royal Oak Ref. 4100SA, unpolished

• Case Size: 36 mm
• Case Material: Stainless Steel and 18k Yellow Gold
• Movement: Automatic with central seconds, the first Royal Oak reference to feature this complication
• Year: 1984

The Audemars Piguet Royal Oak 4100SA holds a distinctive place in the history of one of watchmaking’s most enduring designs. Introduced in the early 1980s and often known as the “third Royal Oak,” it marked an important turning point as the first model in the collection to feature a central seconds hand, adding a new sense of movement and precision to Gérald Genta’s celebrated creation.

Crafted from stainless steel and 18k yellow gold, the 4100SA captures the perfect balance between sport and refinement that defines the Royal Oak. Its 36 mm case preserves all the architectural hallmarks of the original design, including the octagonal bezel, exposed screws, and integrated bracelet. The two-tone composition enhances these features beautifully, lending warmth and depth to the watch’s bold geometry.

Produced in 1984, this reference represents a moment when Audemars Piguet began exploring new movements, materials, and proportions while remaining faithful to the original vision of the Royal Oak. The unpolished case retains its crisp edges, precise brushing, and strong lines that reveal the meticulous quality of the brand’s finishing.

The Royal Oak 4100SA is a testament to the enduring strength of great design. It bridges the early years of the Royal Oak with the evolution that followed, embodying both technical innovation and timeless elegance. In its untouched form, it offers a rare opportunity to appreciate the watch exactly as it left the hands of the craftsmen in Le Brassus.