Does the Seamaster SMPc has an antimagnetic cover?

I've bought an used ceramic 300m the one with no waves dial, 212.30.36.20.01.002 that I believe to be the last non-ehxibition caseback.

I opened the watch and noticed that it has no anti magnetic cover.

Does this model has one?

Seems that it is for the non-ceramic, (see below that is for the "This is the Anti-magnetic Metal Dust Cover which fits the Seamaster 300M watches which had the c.1109 c.1120 c.1128 movements fitted").

Mine has the 2500 co-axial movement.

Am I mistaken? Or is the same part?

Here is from https://www.swisslimitededitions.co...-1640-anti-magnetic-metal-dust-cover-168-1623

096fe0041 Omega Seamaster 300M 168.1640 Anti-magnetic Metal Dust Cover 168.1623
£59.99Price

This is the Anti-magnetic Metal Dust Cover which fits the Seamaster 300M watches which had the c.1109 c.1120 c.1128 movements fitted



These are Omega supplied iron movement dust covers which fit the Seamaster 300M case reference 168.1506 168.1507 168.1508 168.1509 168.1602 168.1603 168.1611 168.1612 168.1613 168.1614 168.1615 168.1617 168.1618 168.1620 168.1621 168.1622 168.1623 168.1624 168.1625 168.1626 168.1627 168.1628 168.1633 168.1636 168.1638 168.1641 168.1642 168.1643 168.1644 168.1645 168.1646 .

Thank you! I'll prpcure that!
Happy new year!