The BC4 Flight Timer combines a 42.7mm stainless steel case and black leather strap with a black triangular patterned dial. Domed sapphire crystal with an anti-reflective coating inside protects the dial, which has Superluminova coated hands, a small seconds sub-dial, a date display, and a 24 hour sub-dial. Powering the watch is the Oris 690 automatic movement with 30 jewels and a 38 hour power reserve, which can be seen through the mineral glass case back. This watch also has a vertical crown for adjusting the second time zone. Click here to view the full Pre-Owned watch collection