Agat 4295A

 
Agat 4295A

Agat 4295A

Description

Made in Zlatoust in the Ural is the Agad 4295A, an 18 1/2 ligne stopwatch movement, which is the russian stopwatch movement and still in production (as of 2021).

It’s display range is between 0.2 seconds and 60 minutes.

base plate

base plate

With 16 jewels, this movement is of higher quality than most other mechanical stopwatch movements, which were once produced when mechanical stopwatches were relevant.

All bearings of this pillar construction, except those of the mainspring barrel, contain rubies.

gear train

gear train

Except for the enormous size of the wheels, the gear train is basically the same as on a “normal” watch: The mainspring barrel drives the minute wheel (here located decentrally at 12 o’clock), followd by third wheel, center seconds wheel and the relatively tiny escape wheel made of steel.

side view of the gear train

side view of the gear train

This movement uses a swiss type pallet lever escapement. The anular Glucydur balance, which is unfortunatly not yet shock protected, beats with 18000 A/h, which means, that the movement can measure 1/5 second steps.

Besides a moveable hairspring stud, the adjustment of the hairspring length is made by a short regulator arm with an hammered in scale into the balance wheel cock.

Agat 4295A: Dial side

Agat 4295A: Dial side

The actual chronograph mechanism is located on the dial side.

Center part is the pillar wheel at position 4 o’clock, which works with 12 steps. Each second step, the balance wheel is started with the help of a lever at 6 o’clock, and on each following step, it is stopped. This way, additional measurings are possible.

When the balance wheel is stopped, with the lever at position 1 o’clock, the two chronograph hands can be reset to zero.

Technical data

Manufacturer:Agat
Caliber:4295A
Size:18 1/2''' (measured: 42,0mm)
A/h:18000
Number of jewels:16
Escapement:Pallet lever
Balance types: Glucydur anular balance (three legs)
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Short regulator arm
Construction:
  • lever
  • escape wheel
  • seconds wheel, third wheel, center minute wheel, mainspring barrel
Construction type:pillar construction
Features:
  • CHR (chronographe)
Inventory number:21004

Usage gallery

Agat stopwatch

Agat stopwatch

Corsar stopwatch

Corsar stopwatch