Is this Rolex Oyster Shock Resisting Ref: 6426 for real or just fake

[yogiolie]

I hope someone can help me about the Rolex Oyster Shock Resisting enclosed:

Cal 1210. - Ref: 6426 - S/N. 2622xxx from 1968 - bracelet. 78350.

This watch has been offered to me for EUR1500, however can not find this type under ref:6426 on the internet, but more under ref:6480. On the dial Shock Resisting is written and under this ref:6426, i only see Precision on the dial?

What do you think, is it real and the price ok?

Thank you for your kind help!

[bridgs]

The letters under the 6 o'clock marker look almost hand drawn.

[adam78]

I think it's a redial. The lack of lume on the dial in combination with luminous hands is a giveaway.