Video Clip: King Seiko Lapinist Caseback Swap

The video tells the entire story, despite having to record it twice due to a technical issue I am certain that at least 90% of the conversation is still intact!

Here was the conversation that inspired me to share this:

MATT: “Just got this and was wondering if I should order the clear case back – I guess it’s more to “save” the medallion than to display the movement.  I don’t really think there is a whole lot to see with the 4502A”

ME: “to me it comes down to whether the movement or the gold medallion are more significant to you as part of the great KS story. For yours the fact that it was one of the chronometer competition models stands out as part of that story as well. So as a patron of the KS legacy it’s all a matter of what you feel is more significant. The medallion can be “saved” with a $0.50 protector from eBay and it’s not like the watch should be used as a daily so wear regardless should be kept to a minimum. 

Personally I like the idea of being able to present the movement and see the working aspect that made KS great.”

To address the finishing aspect, i would argue that the 4502 is a more aesthetically pleasing movement than the multitude of export grade ETA/Sellita/STP machine finished calibers.  

Special thanks to Matt at CanWatchCo, I hope this helps you and that your own Observatory Chronometer swap turns out superlatively!

Thanks for watching,


02:00 Interior

04:15 Installation 

06:38 Installed

08:08 On the Wrist




Make: King Seiko

Model: Hi-Beat

Reference: 4502-7000

Date: 20 March 2022


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