Price range: $25.00 through $50.00
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Wide caliber coverage: Includes dedicated winding arbors for over 35 popular calibers, covering Swiss, Japanese, and Chinese automatic and manual‑wind movements. Each arbor is precision‑machined to the specific barrel inner diameter and arbor size.
Precision manufacturing: Arbors are made of hardened alloy steel with smooth winding grooves, protecting the mainspring edges.
Easy operation: The set includes a handle and a holder with interchangeable arbors. Quickly switch between calibers by changing the arbor.
Safe mainspring handling: Allows controlled winding of the mainspring into the barrel, preventing sudden spring expansion or distortion that often occurs with hand‑winding.
Storage: Supplied in a dedicated case with individual slots for each arbor, preventing loss and damage.
Professional value: An essential tool for any watchmaker performing full movement overhauls, greatly improving efficiency and quality.
Q1: The new mainspring slips when winding. What should I do?
A: Possible mismatch between the arbor’s catch and the spring‘s outer hook, or the hook is bent. Gently adjust the hook angle with pliers, or verify the correct arbor size. For automatic springs with a slipping bridle, ensure the bridle is flat.
Q2: Can I use a close size arbor if the exact one is missing?
A: Not recommended. Even if the diameter matches, different catch positions and depths can prevent proper hook engagement or damage the barrel. Always use the dedicated arbor.
Q3: How should I store the arbors to avoid loss?
A: After use, clean each arbor and place it in its dedicated slot in the storage case. Keep the slot labels clear – add caliber stickers for easier identification.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
