Prospex Alpinist SPB505

Eighth-generation Alpinist, now thinner with the 72-hour 6R55 caliber and Diashield ceramic coating. 200m water resistance in a 39.5mm field watch with rotating inner compass bezel.

• 39.5mm diameter, 12.7mm thick, 20mm lug width
• Caliber 6R55 automatic, 24 jewels, 72-hour power reserve
• Stainless steel case with Diashield super-hard coating
• Sapphire crystal with anti-reflective coating
• Rotating inner compass bezel, screw-down crown
• 200m water resistance