Complete set, IWC Portofino series, model: IW356501, automatic winding, stainless steel, case diameter: 40mm • Case: Stainless steel, 40mm in diameter, 9.2mm thick, light and thin to wear, suitable for suits • Dial: Silver-white cream dial, Roman numeral hour markers at 12 / 6 o 'clock, red number "60" at the 60-second mark on the outer ring (the classic red 60 logo), date window at 3 o 'clock, three hands • Crystal: Sapphire glass, solid back cover • Strap: Black alligator leather strap with pin buckle Ultra-thin at 40mm and 9.2mm, it is very suitable for suit cuffs and is friendly to wrists ranging from 15 to 18cm • Style: Suitable for both business formal wear and light business casual wear, versatile for commuting. The solid case back design emphasizes a simple appearance and is appreciated without considering the movement The "Red 60" was a signature feature of the old Portofino, but this design has been removed from the new model, making it a classic and nostalgic version