Mainspring for Waltham OO S 2221

Height, diameter, thickness and length

1.50 × 12.0 × 0.15 × 360 mmheight × diameter × thickness × length

Note: We have transcribed this information to the best of our knowledge from the Générale Ressorts mainspring catalogue (GR 2, 1974). All information has been carefully checked but is provided without guarantee. Please check yourself before fitting that the mainspring fits, in particular height, diameter, thickness and length.

📏 Mainspring dimensions

GR no.	Height	Diameter	Thickness	Length	Type
4255-TR	1.50 mm	12.0 mm	0.15 mm	360 mm	Hand-wound, with hole (TR)

All dimensions in millimetres. The height of a mainspring is often also called its “width”. Source: Générale Ressorts, mainspring catalogue GR 2 (March 1974), page 194.

🛒 Matching mainspring in our shop

According to the catalogue, this mainspring has a special form (Hand-wound, with hole (TR)). We therefore do not show shop items automatically here – feel free to write to us. Contact form

❓ Frequently asked questions

Which mainspring fits the Waltham OO S 2221?

According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.50 × 12.0 × 0.15 × 360 mm (GR 4255-TR, hand-wound, with hole (TR)).