Case Size:48 mm Also Known As:TG3874BTBBJ Gender:Gents Movement:Automatic Functions:Hours, Minutes, Small seconds, Tourbillon Power Reserve:65 Hours Case Materials:Titanium Bezel:Titanium Case Back:Transparent (See-Through) Dial Color:Gray Band Type:Rubber Clasp Type:Deployment Signatures:Longio Included Items:Manufacturer's Box and Papers Lugs Material:Titanium Strap Color:Black Description: With visible screws, skeleton hands and attractively designed dial, this outstanding timepiece from Longio parallels its technical excellence with its robust appearance, boasting the mesmerizing tourbillon for a stark contrast and irresistible traditional allure. Limited to 100 pieces, this masculine model features a DLC-coated titanium case measuring 45mm in diameter and offering 30m water resistance, mounted onto a black natural rubber strap with deployment clasp. Beating at 21,600 vibrations per hour, the self-winding mechanical movement features 19 jewels and 65-hour power reserve and it’s visible through the sapphire crystal case back. Revolving in scintillating fashion at the six o'clock position of the black and gray dial, the amazing tourbillon is combined with small seconds, while hours and minutes are shown via central black hands with white luminescent details.