Seiko Prospex Modern 1968 MarineMaster 300 Mens Watch SLA021J1 44.3mm In 1968, just three years after producing their first ever diver’s watch, Seiko raised the bar yet again with a hi beat diver’s watch that was water resistant to 300m. The Seiko Prospex Modern 1968 MarineMaster 300 Mens Watch SLA021J1 44.3mm is a modern day interpretation of this iconic watch. The timepiece was also commonly known as the MarineMaster, retaining the same one piece structure, screw down crown, and unidirectional rotating bezel that made the timepieces predecessor so revolutionary. The legendary Seiko logo can be found at the 12 o\'clock position on the black dial with a easy to read date window located at the 3 o\'clock position. Both the hands and indexes are luminescent making for easy reading in dark places, especially that of 300 meters below the water surface. Finally, a three fold clasp with secure lock is fastened to fit elegantly around ones wrist. This leaves the SLA021J1 as a stunning fusion of past and present and suitable for almost any occasion.   For all you Seiko enthusiasts, this premium timepiece has been made and produced in Japan, indicated by the suffix \'J\'. Seiko watches made in Japan are notoriously hard to obtain outside of Japan due to the highest quality of craftmanship and astonishing features that come in each individual timepiece. We have a range of Japanese watches here at Watchnation but in limited quantities, so if you are looking to add to your collection then this is the perfect place for you. Key Features:   Stainless Steel Case Sapphire Glass Caliber: 8L35 Automatic Movement Approximate 50 Hour Life +15 to -10 Seconds a Day Lumibrite 300m Water Resistant 26 Jewels Date Display One-Piece Structure Three Fold Clasp Unidirectional Bezel Stop Second Hand Function Black Dial Stainless Steel Bracelet     The Family: Prospex The Seiko Prospex family uses Seiko’s innovative ethos to combat the watchmaker’s greatest challenge, adventure sports. Whether at sea, on land or in the sky, this collection of timepieces will deliver trademark Seiko precision and reliability in even the most adverse of weather conditions. The Brand: Seiko Seiko’s 135-year history has been marked by a ceaseless determination to innovate in every aspect of the watchmaker’s art. By embracing this mantra, Seiko has been responsible for a string of industry-leading advances in the technology of time, such as the world’s first quartz watch, the world’s first TV watch, and the Seiko Kinetic, the first watch ever to generate its own electricity from the movement of the wearer. Seiko are unique in that they manufacture every aspect of every watch in-house, with this ruthless pursuit of perfection even including growing their own quartz crystals and sapphires.