The Royal Oak has now become a classic timepiece with its octagonal bezel and integrated bracelet and this ref.15400ST is a perfect example. Originally released in 2012 in the new larger 41mm case size, it sports the black Tapisserie dial, and the double baton at 12 is a nod back to some of the original models. The automatic in-house calibre 3120 movement, with beautifully finished gold rotor, can be viewed through the exhibition caseback. Presented with its full complement of original wooden AP box, swing tag, service history, instructions and warranty booklet.