The Citizen Tsuyosa Shore NJ0231-56L is a mechanical watch featuring a 40mm stainless steel case with a thickness of 12.5mm. It is powered by the Caliber 8210 automatic movement, offering both automatic and manual winding options, a 42-hour power reserve, and a frequency of 21,600 vibrations per hour. The marine blue dial is protected by a sapphire crystal and includes luminous hands and indices for enhanced readability. Additional features include a unidirectional rotating bezel, a date display at 3 o'clock, and a transparent case back. The watch is water-resistant up to 100 meters and comes with a stainless steel bracelet equipped with a folding clasp. Reference number: NJ0231-56L.