Would you like to know more? Read the full TWC review here.

• Brand: King Seiko
• Model: Hi-Beat
• Year: 1970
• Movement: 4502
• Base Movement: N/A
• Stated Performance: N/A
• 1st Observed Performance: -2 minutes -59 seconds
• 2nd Observed Performance: -3 minutes -00 seconds
• Notes: Both testing periods achieved relatively the same result as you can see above so clearly I’ll be needing to take this time piece in for servicing regardless of the fact that the seller had said it was recently done.