If Dave so kindly offers a finger, I would try to take his arm

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Means to send him the watch, asking him to look for a suitable glass/crystal and to fit it. In particular in case of a crystal, the size will be rather critical. I recently fitted a new crystal to one of my pocket watches. Despite believing to have measured really well, I ordered 1/10 mm larger and 1/10 mm smaller in addition. One of the three snapped in nicely and firmly, without any need of glue, the other two crystals went into my basket for crystals.
Aside this, if the watch shall be worn more or less often, I would rather look for an acrylic glass, since this will be a better protection against water, because it is put into the bezel with tension and as a soft material adapts better than a crystal glass. This does not intend to suggest that using an acrylic glass will make the watch waterproof.
I like this elegant and stylish kind of watches. It is for a lady and not for a girlie
Cheers, Bernhard