On his first full appearance in the royal blue shirt, he notched Blues second goal in the victory over Barnsley.
And he admits it was a huge thrill to so do, in front of the Tilton Road End at the St. Andrew's Trillion Trophy Stadium.
"At the start of the game, it was difficult for me to get going. I was getting used to the timing," he told bcfc.com.
"The longer the game went, the better it got for me. I found some rhythm.
"The second-half was better and I was very happy to score - I dedicate that goal to all the Birmingham fans.
"My feeling now is to carry on and score more. I believe I can do that."
Describing the 77th minute goal - a deft sidefoot lob beyond the advancing 'keeper from Steve Seddon's crossfield pass - Gimenez recalled: "When I received the ball I knew there was a good chance of something.
"The most important thing is the first control. The first control (off my chest) was forward and I knew in this moment I might be able to score.
"To score at home, in my first start, it was a big thrill and great for my confidence. And of course, more importantly, it was good to help the team to a win.
"And I do think in the future I will score more for this Club."
Gimenez was 20-goal top-scorer in Spain's Second Division last season, for Almeria.
And observers in his homeland predicted he could be well suited for English football due to his hard-working, never-say-die nature and eye to finish off chances.
"Since I have been here I have watched games and I know the Championship is a strong league physically," said the 28-year-old.
"It is quick and I have tried to understand what it is like and control every situation that comes in front of me.
"For sure, it will take a little more time for me to adapt fully. But I know that will happen."
Having the wily Lukas Jutkiewicz as an example to follow, as well as a front partner, has been ideal, says Gimenez.
"To play with Jukey is a great experience. When he receives the ball he makes it easier for you to move because always Jukey knows where you are likely to go, where you might want a pass.
"I think we can continue to play together and do well in the future. It is fantastic for me to have a player like Jukey as a partner."
Gimenez and Blues head to Swansea City tomorrow intent to keep 'growing'.
"For me and the new players when our adaptation is 100 per cent we will all improve. Individually and in things like tactical movements of the team.
"There are a lot of differences to what we have been used to elsewhere, but I do think we are all growing together."