Otero 722

 
sdfsdf

Otero 722

Description

The Otero 722 is a classical manual wind movement from then 1960ies. It has no technical specialities, but a characteristic date indication at 6 o’clock.

base plate

base plate

The execution of this movement is impeccable, all important bearings contain rubies, only the center minute wheel lacks a ruby bearing on the dial side.

base plate with center minute wheel

base plate with center minute wheel

It still has a directly driven center minute wheel, which is beared under an own cock. This cock contains a ruby bearing.

Probably this movement was also available in a smaller, 10 12 ligne, version, since you can see, that the outer part of the base plate is only used for extending the size. The complete gear train needs only the inner space of the movement.

gear train

gear train

The gear train is a typical classic one: The mainspring barrel directly drives the center minute wheel, followed by the usual two-storey construction with third wheel and center second wheel. At the end of the gear train, there’s the steel made escape wheel, whose two bearings contain cap jewels.

side view of the gear train

side view of the gear train

The modern shaped, screw-less three-leg anular balance still beats withen 18000 A/h and is beared in two Incabloc shock protection systems.

As escapement, a classical swiss pallet lever is used.

empty dial side

empty dial side

Of course, the Otero 722 has got a yoke winding system, whose setting lever spring only has got one single hole.

calender mechanism

calender mechanism

The hour wheel drives a change wheel and then the date ratet with a fixed finger. This construction allows a semi-fast correction of the date by turning the hands back and forth a few hours. The date itself changes slowly between 10 and 12 pm.

Otero 722: Dial side

Otero 722: Dial side

Technical data

Manufacturer:Otero
Caliber:722
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel
  • center minute wheel
  • mainspring barrel
Construction type:solid construction
Winding mechanism:yoke winding system
Setting lever spring:1 hole(s)
Features:SCD,QG
Functions:hour, minute, second, day
A/h:18000
Size:11 1/2''' (measured: 25,4mm)
Literature: Flume: K3 35
Inventory number:18031

Usage gallery

Eppo gents watch

Eppo gents watch