Unitas – mainsprings for all calibers

408 calibers with mainspring dimensions

Choose the caliber of your Unitas movement. The caliber page shows the mainspring dimensions and – if in stock – the matching mainspring from our shop.

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.

⚙️ All calibers

Unitas 0–99

Unitas 100–199

Unitas 200–299

Unitas 300–399

Unitas 400–499

Unitas 500–599

Unitas 600–699

Unitas 700–799

Unitas 6300–6399

Unitas 6400–6499

Unitas 6500–6599

Unitas 6600–6699

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