This is a 36mm steel watch with a manual-wind movement from the 60s. Time keeping has been accurate for me, but no service history. No issues with handwinding. Has some slight cracking on the crystal near the 3 o'clock market. 18mm lug width on a used rally style strap. Asking $140 OBO shipped CONUS only. I'd be willing to trade for a dive watch like a Seiko, Orient, Citizen, San Martin, etc. Feel free to send me an offer.