Automatic mechanical movement. Black stainless steel case measuring 47mm in diameter. Mineral crystal glass resistant to UV rays. Black dial face with classic design elements. Silver-tone or applied indices/markers for hours and minutes as well as a date aperture at the 3 o'clock position. Includes central chronograph function (if applicable, based on standard Montbrillant layout). Prominent applied hour markers. Lumibrite luminous material likely present on baton indexes/hands for night readability. Date display visible through a small window. Bracelet finish: Polished or satin-brushed stainless steel caseback with exhibition sapphire crystal displaying the movement internals and winding mechanism (common feature). Standard black leather strap included, secured by a folding clasp with safety release buckle. Pre-owned luxury watch embodying Breitling's heritage of precision and technical mastery.