Larcum Kendall 'K1' - Captain Cook's historic chronometer watch at Greenwich – With the BHI

We visited the workshops at the Old Royal Observatory, Greenwich to get a deep-dive look at this amazing watch while it was dismantled for conservation by Rory McEvoy. Rory gave us this Deep Dive for the BHI's 'Land, Sea & Air' collectors' conference of navigational and military watches organised by the British Horological Institute, Museum of Timekeeping and The Watch Club.

Larcum Kendall was commissioned to produce replicas of John Harrison's ground-breaking H4 marine navigational watch. The watch used revolutionary technology, including tiny diamond escapement pallets, an interim re-winding device called a remontoire, and automatic temperature compensation.

Learn about watchmaking and clockmaking, or get training to become a working horologist, with the British Horological Institute.