How robust or fragile is the Seiko Spring Drive movement? How long does sending it to the factory for a service take? Will they service it 40 years from now? - Quora
How long has your Grand Seiko (Mechanical) been without servicing? | Page 2 | WatchUSeek Watch Forums
How robust or fragile is the Seiko Spring Drive movement? How long does sending it to the factory for a service take? Will they service it 40 years from now? - Quora
![Grand Seiko] Even at 240 fps slow motion, the Snowflake's Spring Drive movement stays perfectly smooth : r/Watches Grand Seiko] Even at 240 fps slow motion, the Snowflake's Spring Drive movement stays perfectly smooth : r/Watches](https://external-preview.redd.it/BAKKU24kjgCpxD2zHkSZ6Ib9nLj9pBAfUdsixtccGDQ.png?format=pjpg&auto=webp&s=3a7fbabe8feb9e93d2c80e98877e8787a2783e9c)