Dear HAQ friends,

I wonder why there few or no grand Seiko 9F quartz models with colorful dials compared to, for example, the grand Seiko spring drive models?
Technologically, a quartz movement without solar should not imply any restrictions.
I am thi…

Hello together,

As far as I know 32 kHz tuning fork quartz have a not negligible position dependency.
As I understand the situation, the temperature dependence is compensated for HAQ, but not the position dependency.

I now had the idea that the rate …