Winding Stem for ETA/Omega Quartz - Caliber 1430 / 1432 / 1436

Compatible Calibres – Verification before purchase

This winding stem is designed for the ETA 255.111 movement and for Omega Quartz calibres using a movement from the ETA 255 family.

Relevant Omega Calibres

This stem can be used on Omega Quartz watches equipped with the following calibres, subject to prior verification:

• Omega calibre 1432
  Calibre based on ETA 255.111.
• Omega calibre 1430
  Calibre based on ETA 255.411, belonging to the same ETA 255 mechanical family.
• Omega calibre 1436
  Calibre based on ETA 255.441, identical architecture for the winding stem.

These calibres share the same stem principle (diameter and threading), with the length being adjustable during assembly.

Compatibility verification (mandatory)

Before placing any order, at least one of the following verifications must be carried out.

1. Calibre verification

The calibre is engraved on the movement.

If the watch clearly states Omega 1430, 1432 or 1436, this stem is movement-compatible.

2. Verification by ETA equivalence

Recognized correspondences:

• Omega 1432 → ETA 255.111
• Omega 1430 → ETA 255.411
• Omega 1436 → ETA 255.441

These movements all belong to the ETA 255 family, using a winding stem of the same design.

3. Verification of the original stem

Compare the old stem:

• same diameter
• same crown thread (0.90 mm)

Length is not a determining factor, as the stem is deliberately supplied longer for adjustment.

Important technical information

• Stem supplied in standard unadjusted length
• Cutting and adjustment necessary during installation
• Final compatibility also depends on the crown and case
• Installation recommended by a qualified watchmaker

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