Seiko SSB421P1 Men's Analogue Quartz Watch with Nylon Strap, black, Strap.

This Seiko Conceptual Chronograph Men's Watch SSB421P offers precision performance with movement, accuracy of +/-15 seconds a month, and a battery life of up to 3 years. The stainless steel case is 11.5mm thick and 39.5mm in diameter, and is waterproof up to 100 metres. The dial is black with lumibrite hands & markers, and the strap is a durable nylon. The watch is powered by a quartz battery (SR936SW), and the sapphire crystal glass gives superior protection.