Semantically, the name ‘Nebula’ was chosen because the sculptural movement driving this timepiece evokes an inverted star that has exploded in an ideal orderly fashion, i.e. with all the bridges converging from the outside of the dial towards the centre, like perfectly symmetrical rays. In terms of complications, the Nebula 38 belongs to the family of three- handed watches indicating the hours, minutes and off-centred small seconds. Lastly, in terms of complexity, this timepiece constitutes one of the most graphically striking, high-impact and original skeleton watches.
This construction was far from easy to devise. Arranging the structures of a skeleton movement in a ring facing inwards is an utterly unique approach. Furthermore, to maintain the sense of symmetry, Arnold & Son moved the winding mechanism linked to the crown stem to the case back, giving it an unusual position that is entirely justified for the overall aesthetic coherence it procures. In spite of this, the Nebula 38 was designed with practicality in mind, as it presents a 90-hour power reserve that is rare for skeleton models.