Tross Report post Posted December 18, 2019 I just purchased a Singer 531. I have researched and it seems it's a Seiko made 206rb. How can I tell if it's a 1, 2, 3? It works great! Serial is TH9404812. Quote Share this post Link to post Share on other sites
dikman Report post Posted December 18, 2019 Photos might help? Quote Share this post Link to post Share on other sites
Gregg From Keystone Sewing Report post Posted December 20, 2019 Your Singer 531B-8BL is a 1994 model, either 206RB-1 or -2. The variance is the oil system where the -2 has an oil tank for the hook and centralized lubrication. Some -1s had this oil system as well, but all of the -2s have the oil system. Quote Share this post Link to post Share on other sites
Tross Report post Posted December 27, 2019 Thanks Gregg! Quote Share this post Link to post Share on other sites
