WS 19: Servicing a SEIKO Chronograph 6138
When working with fragile sub dial hands, a HOROTEC hands press is a nice investment. You have much more control over the pressure applied and the tool comes with a number of (white) bits to accommodate many different types of hands. Of course this little press can be used with all hands, not only sub dial hands. Note the little ring below the movement. This is to support the movement on the opposite side of the pressure applied.
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