Ronda 505 quartz movement.
Casing in AISI 316L steel, 38 mm in diameter, 12 mm thick, worked by a solid bar, polished by hand and then engraved with a milling cutter. Bottom made of AISI 316L steel, diameter 38 mm, thickness 6.5 mm, machined from solid with “flange” stop and sealing O-ring; locking with Allen head screws in AISI 316L steel.
Single screw crown with a unique design called “time valve”, made of AISI 316L steel with mechanical processing, then joined to the insert with a unique process; external satin finish for a calibrated anti-breaking socket with dynamometer.
Black enamel dial with applied applied markers in luminova with metal edges. Steel stick hands with central part in luminova.
“Ribbon” strap, in thick cowhide leather (2.5 mm), hand worked and sewed with waxed thread according to the ancient tradition of saddlers, subsequently fixed to the casing with mechanical coupling.
Swiss Made marking on dial and engraved caseback with autograph of the manufacturer and serial number.