Hirota Masayuki

Hirota Masayuki

1974
Japanese
1985
I have too many!
A manual Cyma
A Svend Anderson with a minute repeater, perpetual calendar, and retrograde date display
I discovered my interest in watches at a very young age. I used to have a job like anyone else, but in 2004, I decided to start a career as a freelance watch journalist. I've been the editor in chief of the watch magazine "Chronos Japan" since 2017. My main passion is the history and development of automatic movements, but I also write about interesting news from the industry, as well as Japanese watchmaking history. Chrono24 is my favorite platform, and I recently purchased a Sinn 244 in fantastic condition from a Chrono24 seller in Austria.

All Articles (1)

CAM-1398-Seiko-Kaliber-6139-Magazin-2-1
23 de set de 2020
 5 minutes
Watches and Technology

The Grandfather of the Modern Chronograph Movement: Seiko 6139

By Hirota Masayuki