Description
This is a vintage 1970s uncommon Gruen watch known as the “Day/Night 24 hour,” measuring 40mm in stainless steel and looking like it is close to brand-new condition. This watch displays 24-hour time or 12-hour time and the apertures change over at midnight from 12-hour to 24-hour indication…pretty cool! The two-tone dial looks amazing. The bezel does turn as well. The manual winding Swiss Gruen movement was just cleaned and is accurate. This is a rare model.
