Tissot 2401
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| Tissot 2401 |
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Description
The Tissot 2401, which was produced in the early/mid 1970ies, was probably one of the latest
inhouse Tissot movements.
It is a typical ladies' watch form movement of tiny size and is construced like any other
movement of that type. Nevertheless, there's one thing, which distinguishes it, that's its
fast beating movement, which uses 28000 A/h instead of the common 18000 or 21600 A/h.
Because of this, the precision was enhanced and since the balance had to be smaller and
with less weight, the watch was less affectable by external influences and shocks.
The balance is secured in two Incabloc shock protections and controls a conventional
pallet lever movement.
On the dial side, you can spot the escapement wheel with its unusual many teeth - that's due
to the fast beating number.
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| dial side view |
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Technical data
| Manufacturer | Tissot |
| Caliber | 2401 |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Balance | Nickel |
| Shock protection(s) | Incabloc |
| Balance cock direction | clockwise |
| Hairspring stud | moveable |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel |
| Functions | Hour, minute |
| Beats per hour | 28800 |
| Size | 53/4 x 63/4''' (measured: 15,3 x 18,0 mm) |
| Image in Flume Werksucher | K3 N1 - |
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| Factsheet |
Usage gallery
