- 51900 Calibre
- IWC-manufactured movement
- Automatic, self-winding
- 168 hours Power Reserve
- Frequency 19800.0 vph (2.75 hz)
- 368 Components
- 44 Jewels
- Côtes de Genève, perlage
- Flying minute tourbillon
- 7 days power reserve
- Retrograde date display
- Power reserve display
- Sapphire glass, arched-edge, antireflective coating on both sides
- Pellaton automatic winding
- Slate-coloured dial
- Dark brown alligator leather strap by Santoni
- Strap width 22 mm