best smartwatch for sleep monitoring-[JDM] Seiko Prospex (Japan Made) Diver Automatic Silver Stainless Steel Band Watch SBDC097 SBDC097J (Not For EU Buyers) (Not For EU Buyers) (LOCAL BUYERS ONLY)

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  • Movement: Cal. 6R35, Automatic with manual winding capacity, 24 Jewels
  • Band: Stainless Steel, Three-fold clasp with secure lock, push button release with extender
  • Water Resistant: 200M