Mainspring for Unitas 208
Height, diameter, thickness and length
📏 Mainspring dimensions
| GR no. | Height | Diameter | Thickness | Length | Type |
|---|---|---|---|---|---|
| 4478 | 1.60 mm | 9.5 mm | 0.095 mm | 340 mm | Hand-wound, normal end hook |
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 184.
🛒 Matching mainspring in our shop
🔄 Alternative mainsprings
Mainspring 1,60-9,0-0,10-32011,90 € incl. VAT *View item
Mainspring 1,60-9,5-0,10-31511,90 € incl. VAT *View item
Mainspring 1,60-9,5-0,1-310 #111,90 € incl. VAT *View item
Mainspring 1,6-9,0-0,10-31011,90 € incl. VAT *View itemSame height, diameter equal or slightly smaller. Please check yourself before ordering.
🔗 According to the catalogue, the same mainspring (GR 4478) also fits
❓ Frequently asked questions
Which mainspring fits the Unitas 208?
According to the Générale Ressorts catalogue (height × diameter × thickness × length): 1.60 × 9.5 × 0.095 × 340 mm (GR 4478, hand-wound, normal end hook).
Is this mainspring available in the shop?
An exact match is not in stock right now, but 4 similar mainsprings are possible alternatives.
Which other calibers use mainspring GR 4478?
According to the catalogue also in Unitas 196 à 198, Unitas 198-1, Unitas 199, Unitas 199-1, Unitas 209 and 2 other calibers.
🛠️ For the workshop
Luminous Compound DIY Set for Watch Hands and Dials – Non-Radioactive – New12,90 € – 29,90 € incl. VAT *View item ›
Domed Sapphire Watch Crystal, 1.0 mm, Ø 16-40 mm – Replacement, New31,90 € – 44,90 € incl. VAT *View item ›
High-Domed Watch Crystal Sternkreuz HW, Flume, for Wrist and Pocket Watches, 12-40 mm5,95 € – 10,90 € incl. VAT *View item ›