In the meantime, I have the batteries replaced easily even at four different watches (Spring lid and screw cap) and can say, "If you bring a little manual dexterity and no Grobmotoriker is, copes well with this tool set." Even my Sector watches (they have a curved band approach - see customer photo) can be clamped in a housing holder (Berger & Schröter 60182 aluminum workpiece holder), open to the enclosed Jaxa Gehäusebodenöffner and matching inserts easily.
Of course, we must at this price do not expect professional quality (a pro-Jaxa Gehäusebodenöffner alone already costs 10 times this set), but for my purposes it is sufficient.
Conclusion: recommendable and 4 stars
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