Citizen Chrono Super Titanium 2470 with solar movement, features a 42 mm titanium case, a black dial and a titanium bracelet. The bracelet are made of Super Titanium TIC with a screw-down back, which makes it a light but resistant watch. 

Sapphire glass in the watch was made in a laboratory by melting aluminum oxide (Al2O3) in the presence of hydrogen and oxygen at 2000 °C. After crystallization into the corundum 'pear', it's cut and further processed into the desired shape and size. Sapphire glass is the hardest glass used in watches. It would be second behind diamond on the scale of mineral hardness, so it can only scratched by diamond. Its only disadvantage is its fragility

Official Box Packaging

Features:

• Display: Analog
• Movement: Solar (quartz)
• Movement Type: Citizen, H500
• Functions: Chronograph, Date, Hour, Minute, Powerreserve, Second
• Case Material: Titanium
• Case width : 40mm
• Case thickness: 11mm
• Case shape: Round
• Water resistance: 10 [ATM]
• Case Color: Grey
• Surface: Matted, Polished
• Glass: anti-reflecting, Saphire glass
• Bezel: Fixed
• Case Bottom: screwed, Titanium bottom
• Dial Color: Black
• Lighting: Illumin. hands, Illumin. indexes
• Watch band Material: Titanium
• Watch band Color: Grey
• Clasp: Folding clasp
• Lug width : 21mm
• Max. wrist circumference : 19mm