Time Out says
Chichibu is renowned for soba made with this mountainous area's clear spring water. Taste the difference at Tachibana, where aromatic, somewhat coarsely ground buckwheat gets turned into smooth noodles that are best savoured cold (ask for ‘mori’ or ‘zaru’) – and with some walnut dipping sauce (¥100).
1-11-3 Nosakamachi, Chichibu
|Opening hours:||11am-4pm (last orders 3pm), closed Thu|