When Kintaro Hattori founded his company in 1881, he was just 21 years old. During his fifty years at the helm, Seiko became the leading watch company in Japan, with its own design and production facilities. This achievement was a direct result of his single-minded vision that Seiko should always be “one step ahead of the rest”.
Key Features:

• Solar Alarm Chronograph
• Powered by light energy - No battery change required
• 6-month power reserve once fully charged
• 12-hour alarm
• Chronograph measures up to 60 minutes in 1/5-second increments with split time measurement function
• When the measurement reaches 60 minutes the stopwatch automatically stops counting
• Date Calendar
• Hour, minute and small second hands
• LumiBrite hands and markets
• Screwdown caseback
• Stainless steel case and bracelet with Black ion finish
• Water-resistant to 10 bar, 100 meters (330 feet)
• Overcharge prevention function
• Chronograph up to 60 minutes in 1/5 second increments
• Alarm function (single-time alarm)

Seiko Essentials SSC143 Black Dial Solar Alarm Chronograph 10 ATM Water Resistant 42.5mm Men's Watch Specifications:

• Caliber Number: V172
• Movement Type: Solar
• Precision: ±15 seconds per month
• Power reserve: Operating for approx. 6 months (when fully charged)
• Case Material: Stainless steel (hard coating)
• Case Size: Thickness: 11.7mm. Diameter: 42.5mm
• Crystal: Hardlex
• LumiBrite: LumiBrite on hands and index(es)
• Clasp: Three-fold clasp with push button release
• Distance between lugs: 22
• Water Resistance: 10 bar