I posted about the limited edition 4R36 divers last month and this month, Seiko released the three regular edition variants. The model numbers are SRP227 (shown above), SRP229 and SRP231 respectively.
The SRP231 comes on a Z22 strap while the other two are equipped with metal bracelet.
Below are the SRP229 and 231 respectively.
More pictures of the SRP231K here: