Description
The BC4 is Oris’s aviation-inspired collection, built around clear legibility and a robust 42.7 mm stainless steel case. This chronograph pairs a black dial and three subdials with the self-winding Oris caliber 674, recognizable by the brand’s red rotor.
Domed sapphire crystal, water resistance to 10 bar and a black leather strap keep the look purposeful, durable and understated.
- Case size: 42.7 mm
- Case: Multi-piece stainless steel
- Movement: Automatic Oris caliber 674, 28,800 vph, 48-hour power reserve, red rotor
- Dial: Black
- Crystal: Sapphire, domed on both sides, anti-reflective inside
- Strap/bracelet: Black leather strap
- Water resistance: 10 bar (100 m)
- Other: Chronograph with three subdials, date, stop-seconds

