In celebrating the model’s 50th anniversary, Citizen has prepared the Promaster Tsuno Chrono 50th Anniversary Edition, released in a limited run of 3,000 units only.

Citizen Delivers Two Limited-Edition Godzilla-Inspired Promaster Watches Aptly nicknamed “Ecozilla.” Watches Nov 7, 2023 13.1K ...

Originally released in 2004, the Promaster Dive (affectionately dubbed the “Ecozilla”) earned its nickname thanks to a combination of beefy proportions and Citizen’s signature Eco-Drive ...