Arogno 151

Arogno 151 | - The Movement Archive

Arogno 151


The Arogno 151 is a relatively rate 10 1/2 ligne manual wind movement of fair quality from Switzerland.

Besides the indication of hours and minutes, it also has got a decentral seconds hand at 6 o’clock.

Arogno 151: gear train

gear train

It has got the classical gear train with directly driven center minute wheel.

Arogno 151: side view of the gear train

side view of the gear train

The two leg screw balance is not shock protected and beats contemporarily slow with 1800 A/h. It regulates a classical swiss pallet lever movement.

Arogno 151: Arogno 151 dial side

Arogno 151 dial side

The setting lever spring, which is broken on the specimen shown here, has got a typical shape. You also see very well the yoke winding system of this movement.

In the lab

The specimen shown here was only slightly gummed and hence only got a fast cleaning and a simple service.

Timegrapher result

For a 60year old movement, which did not get a professional service, the rates on the timegrapher are OK.

horizontal positions
dial up +22 s/d 203° 6.4ms
dial down +23 s/d 213° 5.9ms
vertical positions
crown right (12 up) -115 s/d 174° 7.7ms
crown up (3 up) +15 s/d 170° 7.8ms
crown left (6 up) +115 s/d 174° 7.2ms
crown down (9 up) -138 s/d 179° 6.8ms

Technical data

Size:10 1/2''' (measured: 23,2mm)
lift angle:49°
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Construction type:solid construction
Winding mechanism:yoke winding system
Setting lever spring:2 hole(s)
  • s (decentral seconds)
References: Flume: 1949 I 43
Inventory number:16021

Usage gallery

Arogno 151: Tramont gents watch

Tramont gents watch

Other movements from Arogno