Astra is a square silhouette with refined geometry and faceted dimension. The case is centered around a guillochã©-textured dial and includes 16 premium crystals, creating a structured surface that catches light. Silver-tone dial 29. 0mm polished stainless steel case mineral crystal swiss ronda 763 quartz movement geometric stainless steel link bracelet; push-button deployment clasp water-resistant to 50 meters