OMEGA
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Mainsprings for wristwatches and pocket watches
Boley mainsprings are synonymous with high quality and reliability in watch technology. They are made from a specially developed, highly resilient material and are suitable for both wristwatches and pocket watches.
Properties
• Antimagnetic
• Corrosion-resistant (non-oxidising)
• Self-lubricating
• Low fatigue and durable
• Particularly break-resistant
name4197
width1.5
Ø11.0
thickness0.13
length340
calibreMINERVA 20, OMEGA 268
item No.04197