Apple watch 7 cellular support in bangladesh

Recently Bangladeshi telecommunications company named GrameenPhone(GP) launched e sim i got some information from their website that’s:-

Earlier, Grameenphone was granted an operating license for 4G services after it acquired 5 MHz spectrum in the 1800 MHz frequency band, making it the highest holder of the 1800 MHz frequency, the most suitable spectrum for 4G/LTE rollout. This additional spectrum combined with technology neutral across all bands of GP’s spectrum has placed Grameenphone on a firm footing to provide the best 4G experience. Technology neutrality across the company’s entire spectrum will allow Grameenphone the efficiency and flexibility of assigning voice and data services across its 900, 1800 & 2100 MHz bands to offer an even better experience for customers on the network

and my question is does gp e sim will work on apple watch 7 cellular edition???