Produced by SJ .Taiwan Factory - Cartier French Tank WSTA Series Watch AF5 .Technical Features: .1. Crystal: Sapphire fisheye glass, coated with an anti-fingerprint transparent film for enhanced claritys
and transparency.2. Strap: 316 stainless steel chain, head material cut and spliced.3. Case: Stainless steel with ADLC carbon coating.4. Crown: Stainless steel crown, inlaid with blue multi-faceted synthetic gemstones that change color to red.5. Dial: Three color dials available for selection.6. Dimensions: Medium size 30 x 25 mm, Small size 25 x 20 mm.7. Movement: Imported Ronda 751 movement.8. Gemstones: Electric circle with moissanite, S1 exquisite recommended couple's quartz watch.