Prospex 'Navigator Timer' GMTThis model is limited to 4,000 pieces worldwide and is a recreation of the Navigator Timer launched in Japan in 1968. The Navigator Timer was a pioneer in the realm of sports type GMT models, being the first mechanical GMT watch with a rotating bezel. This modern redux is powered by the new in house 6R54 Calibre movement, the first mechanical GMT movement for Seiko Prospex with a three day power reserve. The case size and case back layout mimics the