Otero 437

 
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Otero 437

Description

On the way, the Otero 437 presents itself, you can clearly see the dark clouds of the forthcoming quartz age. Instead of allowing open views into the movement, it is almost hermetically sealed into a container, which protects it from dust and misusage.

Container

Container

This tiny form movement is pretty impressive, since it even has got an indirect driven center second hand. The ring balance is secured by a Rufa-Anti-Shock protection and has got a moveable hairspring stud.

On the dial side, there’s a yoke winding mechanism. The setting lever is already secured by a spring, so for releasing the crown you have to press a button, which is reachable by the only hole of the container.

Otero 437 dial side

Otero 437 dial side

Technical data

Manufacturer:Otero
Caliber:437
Number of jewels:21
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Rufa-Anti-Shock
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • center second pinion
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:4 hole(s)
Features:SCI
Functions:hour, minute, second
A/h:21600
Size:6 3/4 x 8'''

Usage gallery

Pallas Eppo ladies' watch

Pallas Eppo ladies' watch