Mainspring winder

The Chronofix Estrapade is a universal mainspring winder kit for watchmakers and serious hobbyists. Built in France, it lets you wind barrel springs safely, cleanly, and without the cost of a professional Bergeon set.

Why a mainspring winder?
Winding a mainspring by hand is slow, stressful on the spring, and easy to contaminate with fingerprints or dust. A proper winder protects the spring, speeds up servicing, and gives cleaner results.

Why Chronofix Estrapade?
A full Bergeon winder often costs around $1000+. Cheap copies around $100 look similar, but the hook usually fails and cannot be replaced. The Estrapade is the practical middle ground: ready to use, durable, and designed for long-term maintenance.

Key advantages
• Made in France
• Bidirectional: left- and right-hand wound springs
• Wide coverage: barrel housings from 7.0 to 18.5 mm
• Replaceable steel shafts and hooks for real longevity
• Low-stress plastic parts where it matters
• Rated 4.9/5 by Chronofix customers

Choose your kit

Small Kit (7.0–12.5 mm)
• 2 winders with 1.5 mm and 2 mm stainless steel shafts
• 1 dual-purpose setting bowl / support base
• 12 housing barrels from 7.0 to 12.5 mm
• 1 hook-making template
• 2 hooks

Large Kit (13.0–18.5 mm)
• 2 winders with 2.5 mm and 3 mm stainless steel shafts
• 1 large setting bowl / support base
• 12 housing barrels from 13.0 to 18.5 mm
• 1 hook-making template
• 2 hooks

Complete Kit (7.0–18.5 mm)
Everything from the Small and Large kits, at a better price. Best choice if you service a wide range of movements.

Sizing tip
Choose a housing barrel about 0.5 mm smaller than your mainspring barrel diameter.

Free worldwide shipping on Chronofix.eu.
The RS Winders in this set are licensed under CC-BY-4.0 (modified design by Zero).