Hairspring

SEIKO SPRING has built the real product in the field of various measuring instrument and electronic devices as a manufacture / sales maker of a hairspring since foundation in 1964. It replies to the needs of the visitor in the world from three bases in Japan, China and Bangladesh as a craftsmanship company which can trust it.
Our company manufacture and sell the highly precise and high-density hairspring used for various measuring instruments (movement for Pressure gauge, Dial gauge etc) and an electronic device (Automotive Speedometers & Tachometers, Panel meter etc).

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  Trust and results

  Since foundation, the pursuit about the quality of a hairspring has been continued and the reliance as a domestic leading hairspring manufacture maker has been gained. It strives for improvement in quality from now on to always correspond also to the precision machinery industry which becomes advanced.
  

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  Jig for hairspring

  After understanding completely the specification for which a product is asked, Our company have realized high quality by carrying out proprietary of the jig used for manufacture.

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  Hairspring can not be automated

  There is no example which manufactured the hairspring with the full automated machine at globally, and each has a handmade element even now.
  Therefore, accuracy is dependent on a craftsman's ""work"". By the SEIKO spring, ""the craftsman's work"" by the craftsman who has gained experience for years is realizing and maintaining high precision.

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  Quality control

  The parts used for the measuring instrument is required much more quality. Therefore, we strictly practice quality control and maintain high accuracy.

• Rolling Mills
• CNC Lathe
• Vacuum heat treating furnaces
• Gas substitution electric furnace
• Reflow oven
• Optical micrometer
• Ultrasonic cleaner
• Drying Oven
• Press machine
• Wire cutter
• Torque measuring instrument
• Profile Projector etc