Steampunk Sphere Time Capsule 17 Jewel Ladies Mechanical Pendant Watch. 17 Jewel Wind Up Mechanical Precision Manufactured Movement. See Through Front & Rear Crystals to Permit 100% Viewing of the Internal Works. Case and Chain in Matching Matte Gold. Hand cut leaded crystal jewel. Sapphire Tipped Crown for Added Elegance. Curved Crystals Act as Magnifiers for Easy Viewing of the Hands & Dial Face.