Citizen Eco-Drive Promaster Professional Diver's watch B873-057892. It is used for diving with gas blending with its 6 mm anti-glare crystal, ratchet bezel, screw-down case, screw-in crown, the strip and reinforced urethane extension, with a case for strap extension for a diving suit.  Made of stainless steel with shiny accents and 300 m WR.  Equipped with our Eco-Drive technology, powered by light, any light.  No need for a battery ever.  Calibre number B873. In perfect working order, an extraordinary sturdy diver's watch in great condition. The dial is without scratches. The watch is all original and equipped with a urethane (rubber) diver's strap and rotating bezel for diving. Case thickness: 19 mm. Case size: 48 mm. Suitable for wrists up to 22 cm. Water resistance: 300 m. Hours, minutes, seconds, date and rotating bezel. Shipped via tracked and insured mail.