Whakarāpopototia te tuhinga:  He karaka i hanga i runga i te hoahoa o te 300 tau ki muri i miharo ai nga tohunga na te mea e tika ana ki te hekona mo nga ra 100. Ko te Martin Burgess Clock B o nāianei e hāngai ana ki te karaka o John Harrison o te rau tau 18, i whakaarotia e ia hei whakaoti i te raruraru o te whakatau i te roanga i te moana. He wāhanga tēnei o tētahi whakamātautau 100 rā i te Royal Observatory, i Greenwich, kia kite ai mēnā e pono ana te kerēme - e kore te karaka e ngaro, e whiwhi rānei i te neke atu i te hekona i roto i te 100 rā. Ko te Martin Burgess Clock B (maui), e hangai ana ki te hoahoa a te kaihoahoa a John Harrison (matau) mai i te 300 tau ki muri, kua miharo nga tohunga ma te pupuri i te tika ki te hekona mo nga ra 100. Ko te karaka, i hangaia mā te whakamahi i ngā rauemi hou, i whakaritea i te tīmatanga ki te tau i mua i muri i te herea ki tētahi o nga pou tautoko o te Observatory. Engari i tere kitea ka angitu te whakamatautau ka whakanohoia nga hiri hiraka ki runga i tana keehi kia taea ai te tirotiro i tona tika, i kii te Independent i te Ratapu. I whangangahia te wā mā te whakamahi i tētahi karaka irirangi-whakahaere, i whiwhi i te tohu wā ā-motu, me te karaka kōrero BT. Ko Jonathan Betts, he mema o te Antiquarian Horological Society, i mea: 'I te wa tonu i whakaturia ai e matou te karaka e rere ana, he mea marama kei te mahi tino pai, no reira ka whakakakahu matou i te keehi na te mea kaore tetahi e whakapono ki te pai o te mahi o te karaka.' I tapiritia e ia ehara te karaka i te tauira o Harrison, engari i whakamahia tana hoahoa me tana kaupapa. "He mea nui kia mōhio ko tana hoahoa e takahi ana i ngā mea katoa i kīia e te whakahaere ko te mea pai rawa atu i roto i te hītori", tā Mr Betts. Ko te karaka o nāianei kua whakamanahia e te Guinness World Records, i whakapumautia e te National Maritime Museum i runga i Twitter. Ko te karaka a Martin Burgess B he waahanga o te whakamatautau 100-ra i te Royal Observatory (i runga ake nei), i Greenwich, kia kite mena he pono te kereme - kaore e ngaro te karaka, kaore hoki e nui ake i te rua i roto i nga ra 100 - he pono. Kua whakamanahia te karaka e te Guinness World Records. I te wā i whangangahia ai, e whakaatu ana i te wā UTC...
Ko te Martin Burgess Clock B e hāngai ana ki te hoahoa a John Harrison o te rau tau 18. I herea te karaka ki tētahi pou i te Royal Observatory i Greenwich. Te wā i whangangahia mā te whakamahi i tētahi karaka ā-rorohiko me te karaka kōrero BT. I whakamanahia e Guinness Book of Records, e ai ki te National Maritime Museum.