SJ Production .Taiwan Factory Product - Cartier CARTIER French Tank W S T A Series Watch AF5 .Technical Features: .1. Mirror: Sapphire fisheye glass, coated with an anti-fingerprint transparent film, making the glass surface clearer and more transparent.2. Strap: 316 stainless steel chain, head material cut and spliced.3. Case: Stainless steel with ADLC carbon coating.4. Crown: Stainless steel crown, set with blue multi-faceted synthetic gemstones that change color to red.5. Dial: Three color dials available for selection.6. Size: Medium 30 x 25 mm; Small 25 x 20 mm.7. Movement: Imported Ronda 751 movement.8. Gemstone: Electric ring with moissanite, refined recommendation for couple's quartz watch.