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Astra is square silhouette with refined geometry and faceted dimension. The 29MM case is centered around a guilloché-textured dial and includes 16 premium crystals, creating a structured surface that catches light. Its custom multi-link bracelet echoes the angular case through geometric links designed to feel substantial on the wrist. Finished in stainless steel, Astra is powered by a Swiss Ronda 763 quartz movement and secured with a hidden push-button clasp for a seamless fit.
sku J6410A
case diameter 29 mm
crystal count 16
functions Analog - 12 Hour
water resistance 5 ATM (165 feet - 50 M)
movement Swiss Ronda 763
band size 18 mm
band material Stainless Steel
dial color Silver
color Stainless Steel
case size Small
band color Stainless Steel
battery SR621W/SilverOxide
Every JBW watch comes with an international 2-year warranty, with the option to upgrade to a Platinum Warranty.
The Platinum Warranty is an upgrade option available only to purchases on JBW.com. It extends your standard warranty 2 additional years (4 years total) and provides extra protection and servicing options to help preserve the value of your JBW watch.
US orders ship via standard shipping (3–5 business days). Standard shipping is free on orders $350+, and $10.50 on orders under $350. Expedited shipping options are available for an additional fee, please see checkout for details. International shipping rates are calculated at checkout.
Please allow 1-2 business days for standard processing before your order ships.
Easy returns for US and international orders. We accept unworn, like-new merchandise within 15 days of the original purchase date.

Every JBW watch comes with a 2-year guarantee against defects.
Enjoy complimentary shipping on all JBW timepieces, no extra cost.
With over 20 million gems set, JBW knows Shine.
Bold, timeless designs make JBW timepieces feel unique.