The Portofino Automatic Moon Phase is the first Portofino timepiece with a case diameter of 40 millimetres that features a moon phase display.

Overview
Reference: IW459401
Dial Color: Silver
Case: Stainless steel
Strap: Dark brown alligator leather strap View all compatible straps
Diameter: 40 mm
Movement: Automatic, self-winding

Features
Sapphire glass, convex, antireflective coating on both sides
Central hacking seconds
Moon phase display

Case
Strap width: 20 mm
Buckle width: 18 mm
Case: Stainless steel
Diameter: 40 mm
Height: 11.1 mm
Water Resistance: 3 Bar
Back case: Standard

Movement
Caliber: 35800
Movement type: Automatic, self-winding
Power Reserve: 50 hours
Frequency: 28800 Vph (4 Hz)
Jewels: 25