Explore the 1977 CITIZEN 52-0110 Challenge 150M Diver, known as 'The watch that defied the Pacific.' Discover its unique dial and incredible survival story.
Explore the Citizen 62-6198 Challenge 150M Diver, a vintage tool watch. Discover its unique features, comparison to the 52-0110, and its legacy as a true diver's companion.
Discover the true vintage inspiration for the Citizen Promaster Fujitsubo Titanium re-issue, comparing the 1976 62-6198 and 1977 52-0110 Challenge 150M Diver.