This nicely crafted small form movement dates from the early 1950ies was used in inhouse Tissot ladies’ watches.
With 6 x 8 lignes, it was not an ultra-small movement, but its construction with four gears on the same level, is the same as on tinier ladies’ movements.
The shock protected screw balance controls an conventinal pallet lever escapement with surprisingly (for the fifties) fast 19800 A/h. The effective length of the hairspring is regulated by a long regulator arm, and this all guarantees good precision.
The suffix “-1T” indicates, that this movement is an improved successor of the caliber 13.6. which debuted around 1949.Video on YouTube
On the side view, you get a slight impression of the inner movement.
On the dial side, the Tissot 13.6-1T is decorated with slanted stripes, and of course, it uses a yoke winding system.
|Number of jewels:||15|
Nickel screw balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
|Size:||6 x 8'''|
Flume: K2 -|