Uhro 60

 
Uhro 60

Uhro 60

Description

Hardly anyone is familiar with the fact, that in the german town of Baden-Baden was a production of movements and watches. At least in the 1960ies, the “Uhro-Uhrenteile und Fabrikations- und Handelsgesellschaft bmH / Alfred Kleinmann” was located there. They made simple pallet lever movements, sich as the Uhro 60 shown here. It is a 8 3/4 ligne pillar movement with a rocking bar winding system - the simplest possible incarnation of a pallet lever movement.

base plate

base plate

Indeed, all important bearings contained rubies, but since minute wheel and mainspring barrel were only metal-bared, a trick had to be used to reach the important number of 17 jewels: Escape- and seconds wheel have got two cap jewels each on the movement side.

If you look exactly, you can see the rocking bar, which is normally located on the dial side, and not on the movement side.

gear train

gear train

The gear train is identical to one of a pin lever movement: Mainspring barrel, followed by the directly driven center minute wheel, third wheel, seconds wheel at 6 o’clock, and, unlike a pin lever movement, a well executed escape wheel made of steel at the end. All under one single three-quarter plate, and so not very much service-friendly.

side view of the gear train

side view of the gear train

Of course, such a pillar construction builds pretty high, resulting in long and fragile axles.

Fortunately, the two leg anular balance is already shock protected and beared in two, at least for german movements pretty unusual, M.T.-Antichoc bearings. Probably this is due to the the near french border.

The Uhro 60 beats with 18000 A/h and regulates a conventional swiss type pallet lever escapement.

Uhro 60: Dial side

Uhro 60: Dial side

On the dial side, as written above, you see the unusual executed rocking bar winding system. Since the rocking bar itself is located on the inner side, you see only the three riveted gears on the dial side.

The ratchet however, is very nicely executed, just like on far more expensive movements on top of the winding bridge.

With these details, you can identify this movement easily, even altough is has got no manufacturer and caliber number hallmarks at all.

Technical data

Manufacturer:Uhro
Caliber:60
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): M.T.Antichoc
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel, mainspring barrel
Construction type:pillar construction
Winding mechanism:rocking bar winding system
Functions:hour, minute
A/h:18000
Size:8 3/4''' (measured: 19,3mm)
Literature: Flume: K3 17
Inventory number:20015

Usage gallery

LordNelson Anker ladies' watch

LordNelson Anker ladies' watch

This movement with its watch is a kind support donation from R.Ludwig. Thank you very much for your great support of the movement archive.