Seiko Pendant Watch 21-0410
This is a Seiko pendant watch which was presumably produced around 1966 by Daini Seikosha. This was a commemorative piece gifted to employees of the Kosei Insurance company in 1973 for the companies 10th year anniversary. This pendant clock has the reference 21-0410. The clock is fitted with the 17 jeweled caliber 210 beating at 19,800 beats per hour.