SEIKO Astron series 100 meters waterproof chronograph perpetual calendar dual time zone solar Quartz titanium strap 44.1mm men's watch black di SSH186

Movement type: Solar quartz movement Table diameter/size: 44.1mm Strap material: titanium Case material: titanium Bottom style: dense bottom Waterproof depth: 100 meters Buckle type: folding buckle Mirror material: hyperboloid sapphire crystal Dial color: black