Manual winding mechanical movement. White dial with elegant design. Case crafted from solid 18k yellow gold. Men's wristwatch, size 40mm (noted as close to requested 39mm in description adjustment). Features include a tourbillon complication showcasing advanced horological engineering, manual winding mechanism requiring no battery, sturdy and luxurious case material, sophisticated white dial for classic appeal, precision Swiss movement ensuring accurate timekeeping, automatic operation via crown wind-up.