A. Lange & Söhne Lange 1

The A. Lange & Söhne Lange 1, reference 191.021, has an 18-carat yellow gold case. The case measures 38.5 mm across and 9.8 mm high, has 20 mm between the lugs and a see-through back, and is water resistant to 30 metres. The champagne-coloured dial is crafted from solid silver and carries an outsize date and power-reserve indicator. A medium brown alligator leather strap closes with an 18-carat yellow gold pin buckle. Manual-winding calibre L121.1 beats at 21,600 semi-oscillations per hour. The 368-part movement has a 72-hour power reserve.