Ball Watch pays tribute to its founder, Webster Clay Ball, with the Engineer M Marvelight model, the first watch equipped with a mechanism manufactured by the house itself, the BALL caliber RRM7309-C, with a power reserve of 80 hours. The dial and hands of this watch are equipped with luminescent microgas tubes. The H3 gas is encapsulated in glass microtubes and the energy of the light is released when the H3 molecules hit the colored inner surface of these tubes. It is Swiss technology and this luminescence can be prolonged over time for at least 25 years without needing to be recharged by any external energy source. New version with 904L steel of the same reference NM2032C-S1CJ-BE.