Citizen BL0020-51M Eco-Drive Perpetual Watch Specifications
Technical specifications sheet for the Citizen BL0020-51M men's stainless steel watch with Eco-Drive perpetual movement. The case measures 38–43 mm with 10.5 mm thickness and offers 10 BAR water resistance for everyday durability. Powered by Citizen's proven Eco-Drive E710 movement—no battery replacement needed. The dial features a striking blue textured sunburst finish, and the three-link stainless steel bracelet secures with a practical double-fold clasp. Use this guide to verify model authenticity, understand technical capabilities, and maintain service records.
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- Watchmaking