Scuba Diving Watch question?

I have a Citizen Hyper Aqualand dive watch diving, and just noticed that the bracelet has the words ND limit on it. Also has two sets of numbers, one for depth, and one for the time ND and time and wondered what is ND ND to limit or means, thanks!

Without knowing exactly without seeing the watch strap was no danger of a conjecture in 'No decompression limit. That is how long it can stay in depth with her before going to the mandatory deco stops. In fact I'm almost 100% that's what will be now that I think about it. Nothing really makes sense!

Jaeger-lecoultre Master Compressor Diving – Musimu