IWC Portofino Hand-wound Eight Days IW510116

IWC Portofino Hand-wound Eight Days

Ref#: IW510116

driven by a 59210 manufacture calibre and boast 192 hours – or eight days – of reliable and accurate running. After this period, the movement stops automatically, although it is designed to run smoothly for nine days. This guarantees a constant driving torque for eight days. The integrated power reserve with separate dial display reminds the owner to wind up their watch at the right time. In addition, the indexless balance has a frequency of 28,800 beats per hour and, together with the Breguet spring, which is wound following an age-old tradition of watchmaking, helps to make the watch exceptionally accurate. The see-through sapphire glass back allows the user to view the movement, adorned with Côtes de Genève.

Self-winding Automatic Movement:

IWC Caliber 59210 
Vibrations Per Hour: 28,800 
Jewels: 30 

- Manufacturer Box & Manual 
- Polished Stainless Steel Case 
- Milanaise Mesh Stainless Steel Bracelet 

Features:

- Arched-edge Scratch Resistant Sapphire Glass with Anti-reflective Coating on Both Sides 
- 30 Meters / 100 Feet Water-Resistant
- 45mm = 1 3/4" Case, 7" Adjustable Bracelet 
- Case Thickness: 11.7mm 
- Inlet Size: 22mm 
- Fixed Bezel 
- Sapphire Crystal Exhibition Case Back 
- Screw Down Crown & Case Back 
- Deployment Buckle