Using a huge old chess clock in a game against a friend

I play regularly with a friend, and I like to surprise him by bringing different items from my collection. Today I thought I could bring an old clock, a Swiss product (Billions, Zürich).

The clock is massive, loud, but surprisingly easy to use.
My friend: What is this?
I: What do you think what this is?
He: A chess clock?
I: Exactly, well observed.
He: But so a huge think?
I: Exactly.

We began to play. Everybody could here the clock in the restaurant.

TIC TAC TIC TAC

I had a good position, but after he castle long I didn’t like so much the direction of the game.

TIC TAC TIC TAC

He played well, was able to improve his pawn structure (where did he learn this?)

TIC TAC TIC TAC

I saw that my friend could sac a pawn and open the position for his both rooks against my king, but he didn’t see anything, as usually. As we normally do I was playing with 5 minutes, he with 30, so had to decide fast what to play.

TIC TAC TIC TAC

He decided to exchange bishops. I was very happy about this, and my position began to look better, as I could now advance my pawns on the queenside.

TIC TAC TIC TAC

As usually he didn’t see a knight fork, he lost a quality and soon the game.

TIC TAC ... and I stopped the clock in the last seconds.

I will try to post a picture from the clock later.

Cool! Nice story!

LOL...but I'll assume the rest of the restaurant patrons were not amused by TIC TAC TIC TAC.

They were talking and drinking, I think they didn’t care.