Easy Installation & Firm Attachment: Simple setup requires 86mm (3.4 Inch) diameter opening with 17mm depth Three included metal clips keep the clock head firmly in place without adhesives, allowing easy battery replacement when needed Consistent Movement Technology: Features dependable timekeeping mechanism for accurate display The quiet function ensures peaceful environments, perfect for areas like bedrooms, studies, or workspaces requiring Traditional Styling: Showcases golden circular frame with clear black Roman numerals for effortless reading The traditional inset design complements various clock bases including wood, ceramic, stone, or glass surfaces Battery Specification: Runs on single AA battery (not included per regulations) For extended usage, standard 1.5V carbon batteries are suggested with this clock movement Sturdy Metal Construction: Crafted with robust metal frame, face, and hands for enduring strength and elegant appearance The protective layer helps maintain the finish, ideal for creative projects or clock enhancements with a sophisticated touch