Third generation Clockmaker Steve Fletcher at Clock Workshop Witney UKClock and Watch Repairs The item SETH THOMAS for BAIRD CLOCK CO. 50 tooth escape wheel, double mainspring time-only movement ticks when upright. I'm no expert, but looks like a variation of the 86 model. Seth thomas for baird clock co. double wind 86 type movement only ticks the seller is timelesspicker32 and is located in allegan, michigan.