
$2.00
You Saved
This is a genuine MIYOTA ratchet wheel for the 9015 movement (Part No. 059-802), made in Japan, designed for the 9015 premium automatic caliber. It serves as the core component of the winding system (automatic + manual) , transmitting winding power to the mainspring barrel as the critical link between the rotor and the mainspring in the automatic winding process. This product is brand new and original, not a generic replacement part.
Brand:MIYOTA (by CITIZEN)
Compatible Movement:9015 premium automatic caliber (9000-series ultra-thin)
Part Name:Ratchet Wheel
Part Number:059-802
Origin:Made in Japan
Quality:Genuine original, brand new
Function:Receives and transmits winding power to the mainspring barrel
Movement Height:3.90mm
Movement Size:11½ ligne (25.94mm)
Beat Rate:28,800 bph (4Hz)
Jewels:24
Power Reserve:Approx. 42 hours
1. Is this ratchet wheel an original CITIZEN/MIYOTA genuine part?
Yes. It is an original MIYOTA factory part with part number 059-802, made in Japan.
2. What happens if the ratchet wheel is damaged?
The ratchet wheel is the core component of the winding system, transmitting manual or automatic winding power to the mainspring barrel. Damage can cause inability to wind or severely reduced winding efficiency, leading to insufficient power reserve or stoppage. This part is subject to wear over time—timely replacement is recommended.
3. Does this part come with installation tools or instructions?
No. This is a single precision component. Installation involves disassembly of the winding system and requires professional tools. The ratchet wheel is typically secured by a screw—proper torque control is essential. Work should be performed by a qualified watchmaker.
Fast Worldwide Shipping – Orders are dispatched within 3 business days.
Competitive Pricing – Great value across watch movements, replacement parts and watchmaking tools.
Extensive Selection – More than 3,000 watch movements, parts and accessories available.
Trusted Worldwide – Trusted by watchmakers, repair professionals and watch enthusiasts worldwide.
Personalized Sourcing – Can’t find the part you need? Contact [email protected] or WhatsApp +86 18620212114.









