The Oris BC4 Retrograde Day is a new linear retrograde calendar that displays the days of the week on the dial of the watch.
The central focus of the watch is the position of the triangle. The indicator on the triangle jumps one position each day, white on workdays, red on the weekend, returning to its original state at the end of the week.
The BC4 Retrograde Day includes sapphire glass which is domed on both sides, with inner anti-reflective coating. The case back features see-through mineral glass.
The multi-piece stainless steel case is secured with four screws, while the two- piece black dial includes superluminova indices and numerals – perfect for reading from a distance or in low light situations.
The watch features a black Gaucho leather strap with distinctive stitching detail and a special folding clasp, providing ultimate comfort to the wearer.
Specifications
Oris BC4 Retrograde Day
Ref. No. 735 7617 4164, Ø 42,70 mm
• Automatic mechanical movement Oris 735 based on Sellita SW 220
• Multi-piece stainless steel case secured with four screws.
• Date at 3 o’clock. Retrograde Day index at 6 o’clock.
• Two-piece black dial with printed Superluminova indices and numerals.
• Sapphire glass domed on both sides with inner anti-reflective coating.
• Case back with see through mineral glass
• Stainless steel Quick Lock crown
• Black Gaucho leather strap with stitching detail and special folding clasp. Also available with metal bracelet.
• Water resistant to 10 bar / 100 metres
