• Why Buy From IVSHC
  •  
  • ​• 38,000+ happy eBay buyers since 2001
  •  
  • ​​• 80,000+ watches delivered worldwide
  •  
  • ​​• 100% authentic guaranteed
  •  
  • ​​• Fast, tracked shipping from Hong Kong / Taiwan
  •  
  • ​​• US import tax fully prepaid — no surprise fees
  •  
  • Specification
  •  
  •  
  • Basic Information
    • Case size (length x width x height)
    • 50.1 × 44.5 × 13.8 mm
    • weight
    • 61 g
    • Case and bezel material
    • Carbon/Stainless Steel/Aluminum
    • CASIO EFS-S640ZE-1A

    Why Buy From IVSHC

     

    ​• 38,000+ happy eBay buyers since 2001

     

    ​​• 80,000+ watches delivered worldwide

     

    ​​• 100% authentic guaranteed

     

    ​​• Fast, tracked shipping from Hong Kong / Taiwan

     

    ​​• US import tax fully prepaid — no surprise fees

     

    Specification

     

     

    Basic Information

    • Case size (length x width x height)

      50.1 × 44.5 × 13.8 mm

    • weight

      61 g

    • Case and bezel material

      Carbon/Stainless Steel/Aluminum

    • Strap Material

      Suede strap

    • Waterproof capability

      100m waterproof

    • Batteries and Battery Life

      Solar

    shell

    • Glass material

      Sapphire crystal with anti-reflective coating

    • Compatible watch band sizes

      175 to 215 mm

    Watch features

    • Code table

      1-second stopwatch Measuring range: 29'59 Measuring functions: elapsed time, split time, first and second place times

    • Battery level display/warning

      Battery level indicator

      Low battery warning

    • Battery life

      Operating time after full charge until the hands stop: Approximately 5 months

    • Accuracy

      Accuracy: ±20 seconds per month

    • Other product features

      Normal timekeeping: Hands: 3 hands (hours, minutes, seconds), 3 dials (24 hours, stopwatch minutes, stopwatch seconds)

      Date


    Shipping

    ​​• US: 7–14 days with minor customs delays possible.

      Import tax is already included — no surprise fees.

    • EU/UK: VAT may apply; accurate declarations.

    • Asia-Pacific: Fast, reliable delivery.

    Authenticity

    •  Every watch we offer is sourced directly, verified carefully, and guaranteed 100% authentic.

     

     

    CASIO EFS-S640ZE-1A

    Why Buy From IVSHC

     

    ​• 38,000+ happy eBay buyers since 2001

     

    ​​• 80,000+ watches delivered worldwide

     

    ​​• 100% authentic guaranteed

     

    ​​• Fast, tracked shipping from Hong Kong / Taiwan

     

    ​​• US import tax fully prepaid — no surprise fees

     

    Specification

     

     

    Basic Information

    • Case size (length x width x height)

      50.1 × 44.5 × 13.8 mm

    • weight

      61 g

    • Case and bezel material

      Carbon/Stainless Steel/Aluminum

    • Strap Material

      Suede strap

    • Waterproof capability

      100m waterproof

    • Batteries and Battery Life

      Solar

    shell

    • Glass material

      Sapphire crystal with anti-reflective coating

    • Compatible watch band sizes

      175 to 215 mm

    Watch features

    • Code table

      1-second stopwatch Measuring range: 29'59 Measuring functions: elapsed time, split time, first and second place times

    • Battery level display/warning

      Battery level indicator

      Low battery warning

    • Battery life

      Operating time after full charge until the hands stop: Approximately 5 months

    • Accuracy

      Accuracy: ±20 seconds per month

    • Other product features

      Normal timekeeping: Hands: 3 hands (hours, minutes, seconds), 3 dials (24 hours, stopwatch minutes, stopwatch seconds)

      Date

    Shipping

    ​​• US: 7–14 days with minor customs delays possible.

      Import tax is already included — no surprise fees.

    • EU/UK: VAT may apply; accurate declarations.

    • Asia-Pacific: Fast, reliable delivery.

    Authenticity

    •  Every watch we offer is sourced directly, verified carefully, and guaranteed 100% authentic.