All ArtyA Products are created with passion and love exclusively by Yvan Arpa and skill Master Watchmakers with carefully selected best possible existing materials and highest levels in savoir faire. The aim of a skeleton is to reveal the movement, workings and mechanical beauty in all their glory. Once again, ArtyA reconciles extremes and opens up a new creative path, with a movement clad in the absolute minimum. Case: high grade steel 316 L Engraved and screwed back case. Steel lateral inserts Open sapphire back Triple anti-reflective treatment on sapphire ArtyA Sapin skeleton movement Hours, minutes Size : 44mm Power reserve : 50h High quality hand made leather strap Swiss manufactured Limited edition to 99 pieces