The IWC Portugieser Automatic IW500107, popularly known as the "Portugieser 7-Day" or "Portuguese 7-Day," is a masterpiece of horological engineering and classic design. Featuring a polished 42.3mm stainless steel case, this timepiece is renowned for its elegant proportions and exceptional functionality. The clean white dial is adorned with applied silver-tone Arabic numerals, feuille hands, and a power reserve indicator at 3 o’clock, balanced by a small seconds subdial at 9 o’clock. Powered by the in-house IWC Caliber 52010, it boasts an impressive 7-day power reserve. Paired with a luxurious black alligator leather strap, the IW500107 is a timeless icon of precision and sophistication.

Case:  
42.3mm polished stainless steel case with a slim bezel and elegant lugs, ensuring a sophisticated and balanced design.  
Scratch-resistant sapphire crystal on the front and case back for durability and an unobstructed view of the movement.  

Dial:  
Clean white dial featuring silver-tone Arabic numerals and a railway minute track for classic aesthetics.  
Power reserve indicator at 3 o’clock, showcasing the 7-day autonomy, and a small seconds subdial at 9 o’clock for balanced functionality.

Movement:  
Powered by the in-house IWC Caliber 52010, a highly efficient automatic movement featuring a Pellaton winding system.  
Equipped with two barrels, it delivers an impressive 7-day (168-hour) power reserve.  
Visible through the sapphire crystal case back, showcasing intricate finishing such as circular Côtes de Genève and perlage.  

Strap:  
Black alligator leather strap handcrafted by Santoni, renowned for its luxurious texture and superior quality.  
Secured with a stainless steel deployant clasp for comfort and reliability.  

Specifications:  
Case: 42.3mm polished stainless steel  
Dial: White with silver-tone Arabic numerals, power reserve indicator, and small seconds  
Movement: Automatic IWC Caliber 52010 with a 7-day power reserve  
Strap: Black alligator leather with stainless steel deployant clasp  
Water Resistance: 30 meters