A pre-owned Omega Speedmaster chronograph men's watch with a white dial and stainless steel case and bracelet. Features fixed stainless steel bezel with tachymeter function, luminous black Arabic hour markers on the outer rim along with minute markers, luminescent hands for improved nighttime readability, date display at 3 o'clock position, three subdials respectively displaying hours up to 12, minutes up to 60 and seconds up to 60, automatic movement mechanism, scratch-resistant sapphire crystal lens ensuring clarity and durability, solid case back providing access or visibility if applicable, case diameter measures 39 mm with a thickness of 14 mm for robustness, equipped with a deployment clasp for secure closure, water resistance rated at approximately 30 meters or 100 feet making it suitable for light splashes but not diving depths. Key functions include chronograph operation and tachymeter capability in addition to standard timekeeping and date display.