This brand (Buler) did a lot of LCD watches and I have some of them.
Also, I have other unknown brands like Obbo, Otron, Natron, Kessel, Merca, Conso, Ronic, Sonic, Lambda, Isatron..
Please, I made an error adding the Orient Y811103-40 in the page Orient collections, if you can delete the mistake. This watch is in the principal page of Orient and in the section of Orient Digital, the inserted at the second section is correct. Sorry.