--- description: Horotec MSA07.368 professional rack-press for screw-on case backs. 7 suction dies, 62mm holder. No metal-to-watch contact, scratch-free opening. title: Horotec MSA07.368 Professional Rack-Press - Sofly image: https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368.jpg --- [Skip to content](#content) * [ Home ](https://www.soflypart.com "Home") * [Products](https://www.soflypart.com/shop/ "Products") * [Watchmaker tools](https://www.soflypart.com/product-category/repair-tools/ "Watchmaker tools") * [Press & Press Dies](https://www.soflypart.com/product-category/repair-tools/press/ "Press & Press Dies") * **Horotec MSA07.368 Professional Rack-Press** [![Horotec MSA07.368 Professional Rack-Press](https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368.jpg)](https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368.jpg) [![Horotec MSA07.368 Professional Rack-Press - Image 2](https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368B.jpg)](https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368B.jpg) # Horotec MSA07.368 Professional Rack-Press $1,480.00 You Saved | Brand | Choose an optionHorotec![Horotec](https://www.soflypart.com/wp-content/uploads/2023/06/33.jpg)[Clear](#) | | ----- | -------------------------------------------------------------------------------------------------------- | Horotec MSA07.368 Professional Rack-Press quantity Add to cart x [ Checkout ](https://www.soflypart.com/checkout/) * repair Covers 99% of Repair Needs * Wholesale Discounts * Fast Global Shipping * 24/7 Customer Support ## Product Description This is the **Horotec MSA07.368 Professional Rack-Press**, specifically designed for opening and closing screw-on case backs. The tool includes **1 case holder (62mm)** and **7 suction dies of various sizes**, featuring an innovative rack-and-pinion design and special synthetic deformable dies. The metallic parts of the tool never contact the watch during operation, completely eliminating the risk of scratching. ## Features & Function * **Genuine AP Part** – Swiss factory-original, perfect fit for Caliber 3120/3126. * **Winding System Core** – Transmits crown torque to the mainspring barrel. * **Precision Machined** – High-accuracy gear teeth and sliding surfaces for smooth winding. * **Essential for Service** – Replace when winding slips or fails, or when keyless feels vague. * **Cross-Caliber Compatibility** – Fits both base 3120 and chronograph 3126 movements. ## Specifications | Parameter | Details | | -------------------- | ------------------------------------------------------------------- | | Part Name | Winding Pinion | | Reference | Audemars Piguet 50 | | Compatible Movements | Caliber 3120 (automatic base), Caliber 3126 (automatic chronograph) | | Function | Transmits crown winding torque to the mainspring system | | Origin | Switzerland | | Condition | Brand new, genuine | ## Applications * AP Caliber 3120 (e.g., Royal Oak 15400, 15300) * AP Caliber 3126 (e.g., Royal Oak Offshore chronograph models) * Replacement of worn, broken, or damaged winding pinion during movement service * Repair of slipping crown, inability to wind, or abnormal winding feel ## Frequently Asked Questions **1\. Is this a genuine Audemars Piguet winding pinion?** Yes. It is a Swiss factory‑original part (ref. 50) for Caliber 3120/3126, not a copy. **2\. What are the symptoms of a damaged winding pinion?** Symptoms: the crown spins freely when winding, no winding action; manual winding fails but automatic winding may still work; grinding or sticking during winding; vague keyless positions. **3\. What should I pay attention to during installation?** The winding pinion sits on the stem. Clean the keyless works before installation. Test smooth winding and setting mode switching after assembly. Follow the AP technical guide. Professional installation is strongly recommended. **4\. Does this part fit Caliber 3125?** Caliber 3125 is based on 3120 and typically shares the same winding pinion, but verify with the parts diagram. This part is specified for 3120/3126; confirm compatibility for other calibers. **5\. Do I also need to replace the clutch wheel?** Not always. If the clutch wheel teeth are also visibly worn (rounded or deformed), replace both for optimal keyless performance. ## Why Choose SOFLY Watch Parts? * 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 **info@soflypart.com** or WhatsApp **+86 18620212114**. ##### Our Popular Items [ ![](https://www.soflypart.com/wp-content/uploads/2026/06/Citizen-caliber-8200-movement-holder.jpg) ](https://www.soflypart.com/product/watch-movement-holder-for-citizen-caliber-8200/) ### [Watch Movement Holder For Citizen Caliber 8200 ](https://www.soflypart.com/product/watch-movement-holder-for-citizen-caliber-8200/) [ ![](https://www.soflypart.com/wp-content/uploads/2026/06/Citizen-caliber-5840-movement-holder.jpg) ](https://www.soflypart.com/product/watch-movement-holder-for-citizen-caliber-5840/) ### [Watch Movement Holder For Citizen 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No metal-to-watch contact, scratch-free opening.","sku":"11010204035","category":"Watchmaker tools","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/horotec-msa07-368-professional-rack-press/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368.jpg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368B.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/horotec-msa07-368-professional-rack-press/","productGroupID":"11010204035","hasVariant":[{"@type":"Product","sku":"11010204035","name":"Horotec MSA07.368 Professional Rack-Press - Horotec","description":"Product Description This is the\u00a0Horotec MSA07.368 Professional Rack-Press, specifically designed for opening and closing screw-on case backs. The tool includes\u00a01 case holder (62mm)\u00a0and\u00a07 suction dies of various sizes, featuring an innovative rack-and-pinion design and special synthetic deformable dies. The metallic parts of the tool never contact the watch during operation, completely eliminating the risk of scratching. Features & Function Genuine AP Part\u00a0\u2013 Swiss factory-original, perfect fit for Caliber 3120/3126. Winding System Core\u00a0\u2013 Transmits crown torque to the mainspring barrel. Precision Machined\u00a0\u2013 High-accuracy gear teeth and sliding surfaces for smooth winding. Essential for Service\u00a0\u2013 Replace when winding slips or fails, or when keyless feels vague. Cross-Caliber Compatibility\u00a0\u2013 Fits both base 3120 and chronograph 3126 movements. Specifications Parameter Details Part Name Winding Pinion Reference Audemars Piguet 50 Compatible Movements Caliber 3120 (automatic base), Caliber 3126 (automatic chronograph) Function Transmits crown winding torque to the mainspring system Origin Switzerland Condition Brand new, genuine Applications AP Caliber 3120 (e.g., Royal Oak 15400, 15300) AP Caliber 3126 (e.g., Royal Oak Offshore chronograph models) Replacement of worn, broken, or damaged winding pinion during movement service Repair of slipping crown, inability to wind, or abnormal winding feel Frequently Asked Questions 1. Is this a genuine Audemars Piguet winding pinion? Yes. It is a Swiss factory\u2011original part (ref. 50) for Caliber 3120/3126, not a copy. 2. What are the symptoms of a damaged winding pinion? Symptoms: the crown spins freely when winding, no winding action; manual winding fails but automatic winding may still work; grinding or sticking during winding; vague keyless positions. 3. What should I pay attention to during installation? The winding pinion sits on the stem. Clean the keyless works before installation. Test smooth winding and setting mode switching after assembly. Follow the AP technical guide. Professional installation is strongly recommended. 4. Does this part fit Caliber 3125? Caliber 3125 is based on 3120 and typically shares the same winding pinion, but verify with the parts diagram. This part is specified for 3120/3126; confirm compatibility for other calibers. 5. Do I also need to replace the clutch wheel? Not always. If the clutch wheel teeth are also visibly worn (rounded or deformed), replace both for optimal keyless performance. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","image":"https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.368-150x150.jpg","offers":{"@type":"Offer","description":"Product Description This is the\u00a0Horotec MSA07.368 Professional Rack-Press, specifically designed for opening and closing screw-on case backs. The tool includes\u00a01 case holder (62mm)\u00a0and\u00a07 suction dies of various sizes, featuring an innovative rack-and-pinion design and special synthetic deformable dies. The metallic parts of the tool never contact the watch during operation, completely eliminating the risk of scratching. Features & Function Genuine AP Part\u00a0\u2013 Swiss factory-original, perfect fit for Caliber 3120/3126. Winding System Core\u00a0\u2013 Transmits crown torque to the mainspring barrel. Precision Machined\u00a0\u2013 High-accuracy gear teeth and sliding surfaces for smooth winding. Essential for Service\u00a0\u2013 Replace when winding slips or fails, or when keyless feels vague. Cross-Caliber Compatibility\u00a0\u2013 Fits both base 3120 and chronograph 3126 movements. Specifications Parameter Details Part Name Winding Pinion Reference Audemars Piguet 50 Compatible Movements Caliber 3120 (automatic base), Caliber 3126 (automatic chronograph) Function Transmits crown winding torque to the mainspring system Origin Switzerland Condition Brand new, genuine Applications AP Caliber 3120 (e.g., Royal Oak 15400, 15300) AP Caliber 3126 (e.g., Royal Oak Offshore chronograph models) Replacement of worn, broken, or damaged winding pinion during movement service Repair of slipping crown, inability to wind, or abnormal winding feel Frequently Asked Questions 1. Is this a genuine Audemars Piguet winding pinion? Yes. It is a Swiss factory\u2011original part (ref. 50) for Caliber 3120/3126, not a copy. 2. What are the symptoms of a damaged winding pinion? Symptoms: the crown spins freely when winding, no winding action; manual winding fails but automatic winding may still work; grinding or sticking during winding; vague keyless positions. 3. What should I pay attention to during installation? The winding pinion sits on the stem. Clean the keyless works before installation. Test smooth winding and setting mode switching after assembly. Follow the AP technical guide. Professional installation is strongly recommended. 4. Does this part fit Caliber 3125? Caliber 3125 is based on 3120 and typically shares the same winding pinion, but verify with the parts diagram. This part is specified for 3120/3126; confirm compatibility for other calibers. 5. Do I also need to replace the clutch wheel? Not always. If the clutch wheel teeth are also visibly worn (rounded or deformed), replace both for optimal keyless performance. Why Choose SOFLY Watch Parts? 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\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","price":"1480","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/horotec-msa07-368-professional-rack-press/?attribute_pa_brand=horotec"}}],"@id":"https://www.soflypart.com/product/horotec-msa07-368-professional-rack-press/#richSnippet"}]} ```