Vintage 1976 Seiko Bell-Matic 27 Jewels 4006-7000 Automatic, Overhauled Thank you for viewing. Accuracy is approximately +10 seconds per 24 hours when laid flat. Errors in time may occur depending on the position. The case has been polished and is clean. There are minor scratches. The crystal has been replaced with a genuine new one. When the mainspring is wound and the alarm is activated, it rings pleasantly. ⚠️ The numbers 17, 18, 19, 20, and 21 are missing from the date display. ☆ Operation You can adjust the time by pulling the crown out two clicks. To change the date and day of the week, rotate the hands. To change only the date, press the knob at the 2 o'clock position. Use the crown to wind the "alarm" mainspring. This watch does not have a manual winding mechanism. Pull the crown out one click and set the alarm time by turning the red arrow on the outside of the bezel counterclockwise. The alarm will activate when you pull out the knob at the 2 o'clock position. Case size: 42mm (length) x 38mm (width, including crown) x 13mm (thickness) Lug width: 18mm Belt: New green leather belt (made by MORELLATO) Accessories: ① Watch case, ② New blue leather belt (made by Bambi) There are no problems with the operation, but it is an old watch. Please purchase only if you understand antique watches. Please refrain from purchasing if you are looking for perfection or are nervous. Please check the images carefully and make your judgment. No discounts are available. Thank you.