Hand-wound skeleton chronograph watch with a gold dial. - Material: Leather (strap) - Movement: Hand-wound (skeleton) - Dial Type: Analog - Features: Chronograph function (ST19 movement, inheriting the design of the 175) You can enjoy the movement of the movement visible from the back. The original belt was not satisfactory, so I replaced it with a leather strap with a butterfly buckle. The original belt at the time of purchase and accessories such as NATO straps are also included. Please change it depending on your mood and coordination. - Size: Approximately 38mm, a moderate size among many large chronographs. It fits well on Japanese hands. It is modeled after a watch of the Chinese Air Force, so it also goes well with military American casual styles. I think it is ideal for beginners of mechanical chronographs. Thank you for viewing.