Mechanical Open Heart Series Watch NH9130-84L Dial Color_Black As long as the watch

As long as the watch is close to a smartphone

And under that is the Nivachron Powermatic 80

Hands and Markers

Strap Fashion Color: Two-Tone Silver and Gold

Mechanical Open Heart Series Watch NH9130-84L Dial Color_Black As long as the watchCitizen Mechanical Gent Open Heart collection. It has a power reserve of 40 hours once entirely wound. Additional feature include exhibition case back. A mechanical watch in which the natural motion of the wearer provided energy to wind the mainspring, making mutual winding unnecessary if worn enough. Calibre No. 8229 Movement Automatic Strap Stainless Steel Water Resistant Water Resistant to 50m Thickness 10. 7mm Case Size 40mm Case Stainless Steel