This Seiko 55th Anniversary Prospex watch is perfect for professional divers. Whether you're exploring the deep sea or just wearing it daily, it's a reliable companion. The watch has a case diameter of 44.8mm, thickness of 15.7mm, and length of 51.4mm. With its limited - edition status, high - beat movement, and 300m diving capability, it's a must - have for diving enthusiasts and watch collectors alike.