
Hi rovermark.
The Omega digital 1 with 1602/1603 module does not have a Pulsar equivalent. It's the Omega TC1/TC2 with 1600/1601 movements which have a Pulsar equivalent module.
There are quite a few othe LEDs with Frontier modules (which the 1602/1603 are), but they need some slight re-work to fit the Omega. There are a few threads here covering this topic.
Rgds,
Andrew.