Steampunk Pocket Watch Mechanism Close-Up

An exceptionally intricate technical illustration close-up revealing the internal mechanism of an open brass steampunk pocket watch, where the gears and tourbillon movement transform into a miniature cosmos with tiny glowing sapphire stars and orbiting brass planets, featuring polished copper cogs, ruby jewels acting as pivot bearings, delicate steel balance springs, and engraved Roman numerals framing the outer rim, set on a dark velvet-lined mahogany watchmaker's desk littered with miniature magnifying loupes and precision tweezers, lit by a warm tungsten desk lamp casting long dramatic shadows and rich specular highlights across polished metallic edges, captured in a tight macro detail shot centered on the central gear axle with crisp crisp focus across the intricate gears, executed in a detailed vintage woodcut and copperplate engraving style with fine cross-hatched shading, rich black ink lines, warm metallic bronzes, deep mahogany browns, and glowing celestial blues, creating a timeless visual blend of horology and cosmic imagination.