产品图：机械腕表

Extreme macro product photograph of a luxury mechanical watch, the sapphire caseback revealing a finely finished automatic movement with blued screws, perlage and a balance wheel mid-swing, the brushed steel case and dark alligator leather strap curling beneath, dramatic raking light catching the polished bevels, shallow depth of field with the movement in tack-sharp focus, deep charcoal background, haute horlogerie advertising style, jewel-like sparkle on the gears, meticulous craftsmanship detail, 8k