Crafted in Platinum or gold, the LANG & HEYNE HEINRICH model boasts a stately appearance. With its complex internal mechanism; it gives itself a restrained elegance on the outside. Fine roman numbers on the frosted finished dial made of solid silver frame the date segment and the power reserve indication. Blued cathedral hands indicate time and date.
The HEINRICH model features a unique power reserve indication positioned the above portion of date dial. When the end of the month arrives, the date hand jumps spiritedly over the POWER RESERVE INDICATION back to the first day of the new month.
The timepiece is equipped with the CALIBRE IV. The fourth movement presented by LANG & HEYNE shows another look than its ancestors. The gracile shape of the trigonal bridge is revealing: Chamfered spokes wheels in solid gold, the huge balance with the characteristically L&H design, the fine moustache anchor and last but not least the exciting highlight of the CALIBER V, the mechanism of the constant force. Its position is the escapement wheel, the last part of the wheel train, and it makes sure that the balance receives the same force bit by bit. This compensates the mainspring’s irregular force-curve and tolerances of the wheel train.
The result is constant amplitude of the balance for the whole running time and an enhanced accuracy. The complicated lever mechanism of the prograde (forward jumping) date indication is positioned under the dial and invisible to the eyes.
Platinum or gold
1 countersunk pusher at the side
Sapphire glass on top and bottom
Water-resistant up to 3 bar
Manual winding movement Caliber V
Diameter: 14¼ lines (33mm)
Frequency: 18,000 semi-oscillations per hour (2.5Hz)
Jewels: 24 rubies, 1 diamond
33 hours power reserve
With balance stop mechanism
Hour and minute indication
Up/down power reserve indication
Second hand stop
Frosted solid silver dial
Date indication in blue
Up/down scale in red
Diamond polished and rhodium-plated chamfers
Alligator leather strap with shark lining leather
Pin buckle or folding clasp