You think you have already seen all the existing types of power reserve ? For sure…you don’t ! Imagine a human-like power reserve. After working for nearly 45 hours without a break – all at peak performance – it’s been a long tiring day and energy levels are low. While it was relatively easy to sit up straight at the start of the day, fatigue has now set in, back languidly bends, head hits lap. ‘Mr. Up’ has become ‘Mr. Down’. But before Mr. Down shuts off completely, an invigorating influx of energy lifts his head, straightens his back and brightens his spirits. Mr. Up has been brought back to life!
Welcome to the world of Legacy Machine N°1 Xia Hang. Welcome to the world of Mr. Up and Mr. Down, a collaboration between MB&F and Chinese artist Xia Hang.
MB&F LM1 Xia Hang – It’s all about Power (reserve)
Legacy Machine N°1 Xia Hang (LM1 Xia Hang) retains all of the 19th century pocket watch-inspired features of the original LM1, including the suspended slowly oscillating balance wheel and dual time indications that can be set completely independently, but with a twist: the power reserve is indicated by a miniature, highly-polished aluminium man, designed by talented Chinese sculptor, Xia Hang. The man sits up straight when the movement is fully wound (Mr. Up) and gradually slumps over as the power diminishes (Mr. Down).
LM1’s power reserve complication was modified to enable Xia Hang’s comma man to seamlessly transition from slumping right over when power is low to sitting up straight at full wind. Xia Hang first created full-size sculptures, which MB&F then scaled down to a height of just 4mm (1/8”) and then developed the articulation required. The head, shoulders, back and chest of ‘Mr. Up’ (as the power reserve indicator in known when wound), all bend down – thanks to a concealed hinge – towards the horizontal as he becomes tired and Mr. Up becomes Mr. Down. The tiny micro-mechanical sculpture is crafted from aluminium to minimise energy requirements. A very high polish ensures that the little man both catches the light and the eye, as well as remaining faithful to Xia Hang’s original conception.
MB&F LM1 Xia Hang – Amazing caliber by amazing master watchmakers
The in-house movement powering LM1 Xia Hang bears testimony to the enormous talent of its creators. Jean-François Mojon and his team at Chronode developed the LM1 calibre, which features the world’s first vertical power reserve and allows completely independent setting – including minutes – of both time displays. Acclaimed independent watchmaker Kari Voutilainen was responsible for the aesthetic design and for strictly ensuring the utmost respect for tradition and finish.
Another very special feature of the LM1 movement is the ability to set the two time zones completely independently. The vast majority of dual time zone movements only allow the hours to be independently adjusted, while a rare few offer setting to the half hour. Legacy Machine N°1 allows both hours and minutes of each dial to be set to whatever time the user wishes.
The vertical power reserve indicator on LM1 Xia Hang is driven by an ultra-flat differential with ceramic bearings, allowing for a slimmer complication and a more robust and longer-wearing mechanism. In a spontaneous gesture by Xia Hang, each of the 24 pieces of LM1 Xia Hang – 12 in red gold and 12 in white gold – are accompanied by a pair of full-size (approximately 15cm / 6” high) sculptures of Mr. Up and Mr. Down in polished stainless steel and signed by the artist. Retail price is $107,000.