Citizen launches four new super accurate moonphase watches with atomic timekeeping ⓘ Citizen Citizen expands its atomic moonphase lineup with four new Eco-Drive watches Citizen has expanded its Eco-Drive moonphase lineup with four new radio-controlled watches powered by the H874 movement. It combines radio-controlled time synchronization with Citizen's proprietary lunar calculation system called "Luna Program", allowing the moonphase display to update itself automatically without the periodic corrections usually demanded by traditional moonphase watches. Except for the gray model, which is paired with a calf leather strap, all three come equipped with an integrated five-link stainless steel bracelet. Pricing & Availability The new radio-controlled moonphase collection starts at HK$5,180 (~$660) for the BY1033-01H (gray) and BY1034-59A (white), while the all-black BY1035-56E and blue-dial BY1036-53L are priced at HK$5,280 (~$673). So far, the watches have only appeared on Citizen Hong Kong, and we don't know yet if and when they will launch globally.