Does anyone know why this avia movement has such a small brand

Does anyone know this vintage la LEUBA watch made by M&W ULLMANN??

Hunter Fan Avia II 52 Flat Matte Black Ceiling Fan with Remote

Avia ladies watch identification

In defense of Aliexpress watches

CONFUSING FIND?!? PHILLIPE with AVIA Movement / Greygor?!

ZeroAvia's hydrogen fuel cell plane ambitions clouded by technical challenges

Avia Watch from 1950s did Avia make a Deluxe model ?

Avia: Forgotten but not Gone

Avia: Forgotten but not Gone

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Vanessa Hudgens x AVIA's Activewear Line Is Cute AF

Question] Anyone know anything about this brand? AVIA. Got someone trying to sell this to me. : r/Watches

100% Genuine & All Original, Fully Inspected, Serviced & Guaranteed, Amazing Museum Quality ‘New Old Stock’ Example, All Correct and Properly

Avia, Chronograph Cal.149 9ct 1959 - Original Dial - Museum Condition

Who makes Avia watches? - Quora