Designed with a stainless steel case and brown leather crocodile strap with a vintage dial and blue steel 24-hour hand , this 39.5mm Grand Seiko Caliber 9S86 offers high precision and reliability that endures. Grand Seiko Hi-Beat watches incorporate a new Spron alloy, delivering a longer power reserve and superior durability. The new mainspring produces 50% more torque, meeting the requirements for 36,000 vibrations and providing a 55-hour power reserve. The accuracy of a mechanical watch depends greatly on the precision of its hundreds of individual parts. This is why all the components of each Grand Seiko watch are made by Seiko in-house and to the same high standards. To display GMT, the regular hour, minute and second hands are supplemented with a fourth hand that points to 24-hour marks around the dial, enabling time in different time zones to be displayed on the same watch. For international travelers, the Hi-Beat 36000 GMT offers practical and easy-to-use dual time operation as well as the precision, legibility and beauty that are the hallmarks of every Grand Seiko watch. Featuring a see-through caseback, automatic movement allows for self and automatic winding capabilities and features 37 jewels, with accuracy -3 to +5 seconds per day under static conditions. 30M Water Resistant. Men’s Grand Seiko Mechanical Hi-Beat 36000 GMT 39.5mm stainless steel case and brown leather crocodile strap with a vintage dial.