Oris - Purely mechanical Swiss watches.

Oris BC4 Retrograde Day

Retro style This new BC4 model combines modern aviation watch technology with a stylish retro design. Housed in the sturdy stainless steel BC4 case, the black dial carries a rectangular day display below the centre of the dial. It’s a simple and effective way to stay ahead in the style stakes.

Case Oris BC4, 42.70 mm, 1.681 inches, Stainless steel

Material Multi-piece stainless steel case

Size 42.70 mm, 1.681 inches

Top Glass Sapphire, domed on both sides, anti-reflective coating inside

Case Back Stainless steel, fixed with screws, see-through mineral glass

Operating Devices Stainless steel Oris Quick Lock security crown

Water Resistance 10 bar (100 m, 328 ft)

Interhorn Width 22 mm

Movement Automatic winding day date

Number Oris 735, base SW 220

Dimensions Ø 25.60 mm, 11 1/2’’’

Functions Centre hands for hours, minutes and seconds, individual date and day windows, instantaneous date and day, date and day corrector, fine timing device and stop-second

Winding Automatic winding, bi-directionally rotating red rotor

Power-Reserve 38 hrs

Vibrations 28’800 A/h, 4 Hz

Jewels 26

Dial Black

Material Black dial

Luminous Material Indices and hands Superluminova BG W9

Strap/Bracelet Stainless steel

Material Multi-piece stainless steel metal bracelet, folding clasp

Reference 01 735 7617 4164-07 8 22 58