Royal Oak family · 22 references Audemars Piguet

Royal Oak 50th Anniversary

Name: Audemars Piguet Royal Oak 50th Anniversary
Brand: Audemars Piguet
Availability: InStock

37mm Consistent Pricing

Low $47,914

Median $54,210

High $58,618

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The Royal Oak 50th Anniversary 15551ST pairs the collection’s angular steel case and flowing bracelet with a diamond-set bezel—a different kind of sparkle from the familiar exposed screws and brushed surfaces. At 37mm, it keeps the Royal Oak’s broad, architectural presence without demanding the wrist space of the larger models.

This anniversary generation introduced caliber 5900 to the 37mm Royal Oak, replacing the thicker caliber 3120 and allowing a slimmer case. The detail to distinguish a 2022 anniversary example from subsequent production is the dedicated “50 years” winding rotor, visible through the caseback; the reference alone doesn’t establish that distinction. If you’re choosing between this and the un-set 15550ST, the bezel is the real fork in the road: diamonds soften the industrial character, while the sharply defined case and bracelet keep it unmistakably Royal Oak.

MovementAutomatic

Caliber5900

Case Size37mm

Water Resistance50m