Vintage Omega Seamaster. It's a tuning fork watch, so I believe it's quite valuable. The date change and screw-down crown function without any problems. It has a black dial, a red second hand, and a silver stainless steel model. As shown in the images, there are scratches, paint loss, cracks, and dirt on the bezel. The bezel rotates without issue. Also, as it is a vintage item, there is some corrosion on the dial and hands. There are also dents on the stainless steel bracelet. The wrist size is approximately 18cm at maximum. The watch size is approximately 41mm. The movement is a tuning fork type, and the tuning fork uses mercury batteries. Although mercury batteries are no longer available, this watch has been adjusted to run on readily available and inexpensive alkaline or silver oxide batteries. You can use it as is, but if you are concerned about the bezel or dial, please have it repaired or redone. Omega Seamaster F300 Chronometer 198.0005 Product Information: Manufacturer: Omega Model: Seamaster F300 Chronometer Ref.: 198.0005 Year: circa 1970 Movement: Omega Quartz Cal. 1250 Case: Steel Case Back: Steel, screwed Diameter: 41mm Crystal: Mineral glass Strap: Omega steel bracelet, folding clasp OMEGA Omega Seamaster Seamaster Electronic Electronic f300 Tuning Fork CHRONOMETER Chronometer BULOVA Bulova Vintage Vintage Dial Color...Black Belt Color...Silver Model...Seamaster Accessories...None Operation...Good