Steel Band for the Professional Moonwatch

Morning folks,
First time in.
Proud owner of two Speedmasters and love them both.
I purchased the sapphire sandwich with a leather band..Love Love Love it.
I did want to purchase the steel band.
I would like the Omega brand.
It is the one paired with the moonwatch in reference # 310.30.42.50.01.002

All I see is the description of "steel with five links with fold-over clasp and comfort setting"
What is the part number for this band?

Can this be gotten from Omega as a part or is this an AD item?

Thanks
Chris

Thank you.
I did not even realize there are two different ones!
I do have one on my Broad Arrow (few years older) but wanted to complete the set for the moonwatch pro

The hesalite bracelet is all brushed stainless, the sapphire one has polished hinge bars as shown in the picture. Trivia picked up on here. Congrats on yours, I have three speedmasters, a Hesalite 3861, the new white 3861, and a vintage 3523.80 triple calendar that is probably my favourite still.

Any idea what I should expect to pay?

Or around £700 in the UK. Boutiques should have them in stock if you happen to be close to one.

got it! spoke to the folks where I bought the watch. 750.00 and they can order. Tks.