สายยางยี่ห้อ Crafter Blue สำหรับ Seiko Turtle ทำจากยาง vulcanized rubber strap ได้รับมาตราฐาน ROSH โดย Buckleและที่รัดสายทำจากวัสดุ Stainless Steel มีคุณสมบัติทางด้าน Technical ดังนี้คือความยาวสาย ด้านยาว 135mm ด้านสั้น 75mmสายกว้าง 22mm และลู่ลงเหลือ 20mm ที่บัคเคิ้ลรองรับนาฬิกา Seiko Turtle  Design to fit: Seiko Turtle SRP773, SRP775, SRP777 and SRP779 etcความหนา 4mmDescriptionCrafter Blue CB08 curved end rubber strap is engineered for Seiko Turtle Prospex Automatic Dive Watch SRP773, SRP775, SRP777, SRP779 models, etc. The rubber band is made of pure vulcanized rubber which has superior strength and more resistant than natural rubber to oils and acids. Material has also met the RoHS requirements and rarely causes severe allergic reaction. It also includes a pair of replacement spring bars for easy installation.SpecificationLug width: 22mm Buckle size: 20mm Buckle type: Brushed stainless steel tang buckle Wrist size 5 inches to 8 inches / 127 mm to 203 mm Overall Length: 135mm 75mm Thickness: Approx. 6mm – 3.5mm Design to fit : Seiko Turtle SRP773, SRP775, SRP777 and SRP779 etc Color / Finish: Black, Navy, Orange, Brown, Red Lug end style: Curved End Pin holes: 15 resistant pin holes offering flexibility in lengthDesign to FitSRP773, SRP775, SRP777, SRP779, SBDY013, SBDY015, SBDY017, SBDY021, SBDY027, SBDY031, SBDY039, SBDY041, SRPE03K1, SRPE05K1, SRPE07K1,SRPE21K1, SRPD11K1, SRPC91K1, SRPC23K1, SRPC25K1, SRPC49K1, SRPA21K1, SRP773K1, SRP775K, SRP777K1, SRP779K1, SRPE99, SRPE39, SRPE93, SRPF77, SRPG19Wrist size 5 inches to 8 inches / 127 mm to 203 mm