MovementSwap

Interchangeable. The ETA 2893-2 and Sellita SW330-1 share the same 25.60 mm x 4.10 mm footprint and the same centre seconds, GMT 24h hand, date at 3 layout, so one drops into the other's case with the correct dial and hands. Published dimensions, layout and the checks before you swap one for the other.

Updated 05 September 2026.

Drop-in resolution

ETA 2893-2 vs Sellita SW330-1: do they swap?

Whether the ETA 2893-2 and Sellita SW330-1 share a case, and what changes if you move between them.

Drop-in

Interchangeable. The ETA 2893-2 and Sellita SW330-1 share the same 25.60 mm x 4.10 mm footprint and the same centre seconds, GMT 24h hand, date at 3 layout, so one drops into the other's case with the correct dial and hands.

The ETA 2893-2 is the GMT member of the 2892 family, base for many caller-GMT travel watches. The Sellita SW330-1 is the Sellita caller-GMT automatic, the drop-in alternative to the ETA 2893-2.

Their published figures are the same to the tenth of a millimetre. A 2892-A2 with an added 24-hour hand for a second time zone at 25.60 mm x 4.10 mm. The extra GMT train and hand mean it needs a GMT dial and hand set; its drop-in donor is the Sellita SW330-1.

Matching diameter and height is necessary but not sufficient. A donor is only a true drop-in when the dial-foot positions, hand-hole sizes, stem length and calendar layout also match. Two movements can share a case and still need a new dial, re-broached hands or a cut-to-length stem.

Calibers and lookups

ETA 2893-225.60 mm x 4.10 mm
Sellita SW330-125.60 mm x 4.10 mm
Donor movement for ETA 2893-2drop-in lookup
Donor movement for Sellita SW330-1drop-in lookup

Questions and answers

ETA 2893-2 vs Sellita SW330-1: do they swap?

Interchangeable. The ETA 2893-2 and Sellita SW330-1 share the same 25.60 mm x 4.10 mm footprint and the same centre seconds, GMT 24h hand, date at 3 layout, so one drops into the other's case with the correct dial and hands.