A. Lange & Söhne Zeitwerk Minute Repeater

The A. Lange & Söhne Zeitwerk Minute Repeater, reference 147.028F, combines jumping numerals and a decimal minute repeater in 18-carat white gold. This limited edition of 30 pieces has a 44.2 mm case measuring 14.1 mm high, with a 21 mm lug width. The case has a see-through back and a water-resistance rating of 30 metres. A blue alligator leather strap closes with a white gold folding clasp. Manual-winding calibre L043.5 incorporates 771 parts and a constant-force escapement, beats at 18,000 semi-oscillations per hour and provides a 36-hour power reserve. The deep blue dial is crafted from solid silver and has a power-reserve indicator.