[product_description]Astron GPS Solar Dual-Time Chronograph. Extending the legacy of the Seiko Astron, the worlds first commercially available quartz watch, todays Astron is designed for a new generation of leaders to break through to a new future with excellence in both innovation and style. Combining solid tailoring with the highest degree of accuracy possible in a wristwatch, this exceptional timepiece is equipped with Seikos 5X83 caliber, offering both high-speed GPS dual time and time zone adjustment to 39 time zones and a chronograph function that measures elapsed time in 1/20th second increments. The movement also features an AM/PM indicator, daylight saving time function, power save function, perpetual day/date calendar correct to the year 2100, and a time transfer function that allows the user to switch the main time and dual time indications with the push of a button, all powered by light energy with no battery change required. Framed by a titanium bezel with a black ceramic tachymeter insert, and topped with dual curved sapphire crystal with super-clear coating, the black dial displays a distinct texture, made possible by improved charging efficiency of the solar cell, providing an outstanding contrast to the subdials. In addition to the four subdials, laid out vertically for a sporty look, a first for Seiko Astron, the dial includes a date calendar and LumiBrite hands and markers. Crafted of light and durable titanium with super-hard coating, this superb timepiece has a contemporary feel thanks to the sleek lines, slim profile, and the compact and angular design that seamlessly flows from the case to the bracelet and includes a secure screwdown caseback and tri-fold push button release clasp with smart-adjust function. 10 bar, 100M Water Resistant[/product_description]
[unique_description_1]

• Model: SSH151
• Collection: Astron
• Gender: Men's
• Dial Color: Black
• Strap Material: Titanium
• Strap Detail: Titanium bracelet with super-hard coating
• Lug Width (mm): 14
• Movement: Solar GPS
• Caliber: 5X83
• Movement Detail:
  Caliber 5X83
  Powered by light energy - no battery change required
  Power reserve: approximately 6 months once fully charged
  SSH151
  
• Case Material: Titanium case with super-hard coating
• Case Diameter (mm): 43.3
• Case Thickness (mm): 13.4
• Case Length (mm): 49.5
• Crystal Type: Dual curved sapphire crystal with super clear coating
• Water Resistance: 100 meters

[/unique_description_1]
[unique_description_2]

• Astron GPS Solar Dual-Time Chronograph
• High speed GPS time and time zone adjustment (39 time zones)
• Perpetual day and date calendar correct to the year 2100
• 1/20 second chronograph with vertical subdial layout
• Dual time indicator and time transfer functions
• DST, in-flight mode, and power save functions
• AM/PM and signal reception result indicators
• Ceramic bezel insert with tachymeter
• Black textured dial with contrasting subdials
• LumiBrite hands and markers
• Tri-fold push button release clasp with Smart Adjuster function

[/unique_description_2]