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This is a genuine Ronda 505 yoke, an original Swiss-made component for the Ronda 505 quartz movement. It serves as the core component of the keyless works, transmitting crown pull and rotation operations to the clutch and setting mechanism for time setting and date quickset function switching. This product is brand new and original, not a generic replacement part.
Brand：Ronda (Swiss)
Compatible Movement：505 quartz movement (10½ ligne xtratech series)
Part Name：Yoke (Keyless Works Component)
Part Number：3015.081
Origin：Swiss Made or Swiss Parts
Quality：Genuine original, brand new
Function：Controls clutch wheel positioning, enables crown mode switching
1. Is this yoke an original Ronda genuine part?
Yes. It is an original Ronda factory part with part number 3015.081 , Swiss Made.
2. Which movements is this yoke compatible with?
It fits the Ronda 505 series quartz movement, measuring 10½ ligne (23.30–23.90mm) with 3.00mm thickness, part of Ronda’s xtratech product line, featuring 3 hands and date display. The yoke is partially compatible with 507, 509, 517, 519 series. Official technical notes state that parts 3015.081 and 3905.067 must be exchanged together.
3. What happens if the yoke is damaged?
The yoke is a core component of the keyless works. Damage can cause crown operation failure, inability to set time, or abnormal date quickset function. As a wear-prone component, timely replacement is recommended. The spring (part 3905.067) must be replaced simultaneously.
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