Titan is a brand owned by tata group, here I will focus in the octane range of the titan brand, the octane series is very large, it has ample of products, I cant describe about all the models but yes I can describe about the form factor of that series because the design language of almost every product is almost same with minor differences.
The titan octane series is one of the premium series of the Titan range, the build quality is just wow, I can describe it in only one word i.e. fantastic.
There are some also waches brands owned by tata i.e. fastrack and sonata but the Titan is the premium of the three and obviously costliest of the three.
I will definitely recommend these octane series of Titan