Seiko Prospex Watches Mod. Spb381j1 Official Box Product Description: Introducing the Seiko Prospex SPB381J1, a distinguished timepiece that seamlessly blends Seiko's rich heritage with modern innovation. This men's automatic GMT diver's watch is a re-interpretation of the iconic 1968 model, offering enhanced functionality and contemporary aesthetics. Key Features: Movement: Equipped with Seiko's in-house 6R54 automatic movement, this watch provides both self-winding and manual winding capabilities. It boasts a power reserve of approximately 72 hours and operates with a precision of +25 to -15 seconds per day.Case and Bezel: The 42mm stainless steel case is complemented by a unidirectional rotating bezel featuring a durable ceramic insert, ensuring longevity and resistance to scratches Crystal: A sapphire crystal with anti-reflective coating on the inner surface protects the dial, offering clarity and scratch resistance. Water Resistance: Designed for diving enthusiasts, this timepiece is water-resistant up to 200 meters (660 feet), adhering to ISO standards for scuba diving SpecificationValuePackagingOfficial Box