---
description: Genuine Horotec MSA07.331 steel die — Swiss made, CT/Aqualand type, 35mm. Screw-on case back opening. Genuine Horotec.
title: Horotec MSA07.331 Steel Die - Sofly
image: https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.331.jpg
---
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- **Horotec MSA07.331 Steel Die**
[](https://www.soflypart.com/wp-content/uploads/2021/03/MSA07.331.jpg)
# Horotec MSA07.331 Steel Die
$65.00
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## Product Description
**Genuine Horotec MSA07.331 steel die for opening and closing screw-on case backs**, CT/Aqualand type, **35 mm**, made in Switzerland and brand new in original packing. Specifically engineered for **CT/Aqualand type screw-on case backs** — compatible with Horotec rack-press and case holder systems. An essential tool for **certified watchmakers and repair technicians** performing professional screw-on case back operations on CT and Aqualand watches.
## Features & Function
- **Genuine Horotec steel die** — Swiss-made, brand new in original packing, not a generic copy
- **CT/Aqualand type design** — specifically engineered for CT and Aqualand screw-on case backs
- **35 mm size** — precision-machined for accurate case back engagement
- **Steel construction** — durable and precise for reliable screw-on case back operations
- **Press-compatible** — works with Horotec rack-press and case holder systems (Ø 6 mm thread)
## Specifications
| Parameter | Value |
| --- | --- |
| **Brand** | Horotec |
| **Model** | MSA07.331 |
| **Origin** | Made in Switzerland |
| **Condition** | Brand New In Original Packing |
| **Size** | 35 mm |
| **Type** | CT/Aqualand (Screw-on Case Back) |
| **Thread** | Ø 6 mm |
| **Application** | CT/Aqualand screw-on case back opening and closing |
## Applications
- Opening and closing CT/Aqualand type screw-on case backs
- Professional screw-on case back operations on CT and Aqualand watches
- Certified watchmaker and repair technician professional tool supply
- Watch repair workshop and service center equipment
- Compatible with Horotec rack-press MSA07.369 and case holder systems
## FAQ
**Q1: Is this a genuine Horotec steel die?**
A: Yes — this is a **genuine Horotec MSA07.331 steel die**, made in Switzerland and brand new in original packing. It is not a generic or third-party copy.
**Q2: What type of case backs does this die work with?**
A: This die is specifically designed for **CT/Aqualand type screw-on case backs** — measuring **35 mm** in diameter.
**Q3: How does it differ from the MSA07.336 SEAM. dies?**
A: The MSA07.331 is designed for **CT/Aqualand type** case backs, while the MSA07.336 SEAM. dies are designed for **standard screw-on case backs** (SEAM. type). The CT/Aqualand type features a distinct notch/slot pattern requiring this specific die.
## 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**.
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An essential tool for\u00a0certified watchmakers and repair technicians\u00a0performing professional screw-on case back operations on CT and Aqualand watches. Features & Function Genuine Horotec steel die\u00a0\u2014 Swiss-made, brand new in original packing, not a generic copy CT/Aqualand type design\u00a0\u2014 specifically engineered for CT and Aqualand screw-on case backs 35 mm size\u00a0\u2014 precision-machined for accurate case back engagement Steel construction\u00a0\u2014 durable and precise for reliable screw-on case back operations Press-compatible\u00a0\u2014 works with Horotec rack-press and case holder systems (\u00d8 6 mm thread) Specifications Parameter Value Brand Horotec Model MSA07.331 Origin Made in Switzerland Condition Brand New In Original Packing Size 35 mm Type CT/Aqualand (Screw-on Case Back) Thread \u00d8 6 mm Application CT/Aqualand screw-on case back opening and closing Applications Opening and closing CT/Aqualand type screw-on case backs Professional screw-on case back operations on CT and Aqualand watches Certified watchmaker and repair technician professional tool supply Watch repair workshop and service center equipment Compatible with Horotec rack-press MSA07.369 and case holder systems FAQ Q1: Is this a genuine Horotec steel die? 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