Citizen NJ0173-18X automatic, reference confirmed on the exhibition caseback. Miyota caliber 8210, 21 jewels, self-winding with date at 3. stainless steel case with rose gold-tone bezel and crown, green sunburst dial, rotating bezel, 100m water resistant, see-through caseback. Running strong and keeping good time. Currently on an aftermarket brown leather rally strap that fits larger wrists. Also includes a genuine Citizen stainless steel bracelet, sized small to roughly a 6.5” wrist. Comes in a Citizen Promaster box, which is not this model’s original box. Ships fast and secure.