Along with the Astron Kintaro Hattori limited edition launched to mark the 100th anniversary of Seiko watchmaking, Seiko presents six new Astron GPS Solar watch models.

The Seiko Astron Solar GPS watch was introduced in 2012. It is the world’s first solar watch with GPS. Now the brand welcomes six new models equipped with the proprietary timekeeping technology.

Dressed in a massive 47mm diameter case in high intensity titanium or stainless steel, all new references house the Caliber 7X52 with Solar GPS satellite radio correction.

While the functionality remains the same, the ease of use has been increased by the printing of 26 city names on the bezel where they are more legible.

Total six new Seiko Astron GPS Solar models have been added: Three are in steel and three in high-intensity titanium.

The high- intensity titanium creations have a ceramic insert in the bracelet whose colour is echoed in the bezel.

Technical details
Model: Seiko Astron GPS Solar
References
- SAST015/ SBXA015*: Titanium case with black ceramic bezel, titanium bracelet with black ceramic centre links, black dial
- SAST017/ SBXA017*: Titanium case with black ceramic bezel, titanium bracelet with black ceramic centre links, black dial with rose gold toned hands and details
- SAST019/ SBXA019*: Titanium case with blue ceramic bezel, titanium bracelet with blue ceramic centre links, black dial
- SAST021/ SBXA021*: Stainless steel case with black ceramic bezel, stainless steel bracelet, black dial
- SAST023: Stainless steel case with blue ceramic bezel, stainless steel bracelet, black dial (not available in Japan)
- SAST025/ SBXA025*: Black hard-coated stainless steel case with ceramic bezel, black hard coated stainless steel bracelet, black dial with orange second hands and indexes
* JDM reference numbers
Movement
Caliber 7X52 with Solar GPS satellite radio correction
Power save function
Perpetual calendar function
World time function (39 time zones)
Dual time display function
Power reserve display function
Time zone correction function by GPS satellite radio wave reception Smart sensor (automatic time correction function) Forced time correction function
Captured satellite number display function
Reception result display function
Reception off function (airplane mode)
Needle position automatic correction function
Case and bracelet
Seiko Astron GPS Solar Titanium, References SAST015, SAST017 and SAST019
Case: High-intensity titanium with ceramic bezel
Diameter: 47.0 mm
Thickness: 16.5 mm
Glass: Sapphire crystal with Super-Clear Coating
Screw lock crown
Screw case-back
Band: High-intensity titanium with three-fold clasp with push button release
Water resistance: 10 Bar
Magnetic resistance 4,800 A/m
Seiko Astron GPS Solar Steel, References SAST021, SAST023 and SAST025
Case
Stainless Steel with ceramic bezel (SAST021, 023) or stainless steel with black hard coating with ceramic bezel (SAST025)
Diameter: 47.0 mm
Thickness: 16.5 mm
Glass: Sapphire crystal with Super-Clear Coating
Screw lock crown
Screw case-back
Water resistance: 10 Bar
Magnetic resistance: 4,800 A/m
Bracelet
Stainless Steel bracelet with three-fold clasp with push button release (SAST021, 023)
Extra-strength silicon strap with three-fold clasp with push button release (SAST025)
Approximate recommended retail price range in Europe
Euro 2,100 (SAST021, 023, 025)
Euro 3,000 (SAST015, 017, 019)