Alarm Date Alds51301-y Hand-winding Watch Vintage Alarm Collectible

This is a Citizen Alarm Date 4H Parawater ALDS51301-Y.
This model is the 2nd generation Citizen Alarm watch "4H/Four Hand".
This product is in beautiful condition overall.
There is no noticeable damage to the dial or exterior.
The movement is equipped with a 21-jewel hand-wound movement, and it also has a separate mainspring for the alarm.
Wind up the alarm mainspring with the 2 o'clock side crown and pull it out to set it.
When the time comes, the arm hits the bar on the back cover, producing a large vibration and sound.
An almost unused non-genuine stainless steel belt is included as a bonus.
The daily difference is about 1 minute after measuring for about a week, and it is working fine, and the alarm is also working without problems.
Winding can be done smoothly with both the alarm crown.