I might be in Tokyo in late May (2014) with hopefully a spare day or two.
Are there any geek technology or precise time frequency locations /
activities / events / people I should seek out while I'm there? Are there any
high-precision clock or time-nuts or vintage-electronics collectors in
Tom,
If you have time - you may visit New Japan Radio:
http://www.njr.com/
3-10, Nihonbashi Yokoyama-cho,Chuo-ku, Tokyo 103-8456, Japan
TEL: + 81-3-5642-8222 / FAX: + 81-3-5642-8220
I believe there are people there that also deal or know those that know
about vintage equipment in the area.