I photographed the Moser Perpetual 1 some time ago…the photographs appear here.
As a followup, this is a detailed look at the movement, showing the salient features of the quite excellent finish:
Zooming in on the escapement:
The entire esacapement, can be unscrewed at the ends of the bridge, and removed. Moser provides service centers with pre-poised, balanced, timed and adjusted escapements, so field replacements are possible. Click on the image for a 1920 pixel wide image.
And to show off the sharp curves, and fine anglage finishing, here is a closeup of the bridges. Note also the beautiful jewel within the gold chaton with screws holding the chaton to the bridge.
