...you're fine.

I think people are looking at the 7736 on OTD and thinking that looks more like this 7733, so this 7733 must be incorrect. But not all 7736s look like that and you will see the same variation in those too.

These levers are to do with stopping and starting the chronograph and there is no difference * in them between 7733, 7734 and 7736. There's no reason for there to be a difference in how the chronograph is started because of the number of registers after all.

* Where there is a difference is between different series of the entire 773x family.

So when you compare apples with oranges, like a series 1 7733 with a series 3 7733 and a series 1 7736, you can come away with the wrong impression that there's something wrong with that series 1 7733 cos it looks more like "a" 7736 than "a" 7733. Whereas in fact, what it looks like is "that" 7736, by dint of being from the same series.

There are all sorts of pitfalls in id'ing movements and this is definitely a good example! When you think of the near-40 year lifespan of the Vj 72, you come to expect detail changes in the movement, whereas it might come as more of a surprise on a movement that changed so much in