1968 Seiko Lord Marvel　修理

The grandfather of Hi-Beat watches: Seiko LM5740 36000 bph
https://www.youtube.com/watch?v=V_VnEy8xWIQ
Vintage Watch Services
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Today we are working on a 1968 Seiko Lord Marvel with the at the time insanely high beat 5740C movement. Join us for a full service of the watch and a discussion of the concept of high beat rates as well as a look at how this affects the smoothness of the seconds hand.