Seiko Auto 100m - SRPB37J-ST
Movement: 4R36 - Automatic 24 jewels

Made in Japan
Case and bezel - stainless steel.
Crystal: Hardlex
Power reserve: 41 hours
21,600 vibrations per hour
Screw case back Screw-down crown
With black silicon strap in tyre threading

Case reference: 4R36-06B0
Case diameter: 43.8mm
Case thickness: 13.2mm

64-21051217769-TW