English Product

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Test Indicator


Thickness Gauge


Depth Gauge


Caliper Gauge


Bore Gauge & Micro Hole Test


Other Precision Measuring


Electronic Equipments






Inch Type

English About Us


We ,at TECLOCK aims at being the enterprise which contributes to the development of human culture and wealth with humanity through manufacturing and sales of precision measuring instrument. Our motto is always “technology first ” and to keep developing extremely reliable products continuously.

Kentaro Harada

■Business contents

We have provided customers of around 70 countries in the world including Japan with precision measuring instrument of TECLOCK brand mainly dial gauge for around 50 years since our foundation in 1950.
We obtained ISO 9001 certificate in 1997 as the first obtainer in the business field and have structured high quality system for not only products but also after sales service.
We keep aiming at being a pioneer of new era with employees’ untiring efforts from now onwards.

■Company Profile

Company Name TECLOCK Corporation
Address 2-10-3 Naruta-cho Okaya-shi Nagano
394-0042 Japan
TEL 81-266-22-4911 FAX : 81-266-22-4914
E-mail teclock@teclock.co.jp
President Kentaro Harada
Establishment 21st July 1950
Domestic main clients Toyota Motor Corporation / Denso Co., Ltd / Nissan Motor Co., Ltd / Hitachi Co.,Ltd. / Toshiba corporation. / Honda Motor Co.,Ltd. / Mitsubishi Motors Corp. / Mitsubishi Heavy Industries,Ltd. and so on.
Domastic major related trading houses Sugimoto&Co.,Ltd. / Yanagisawa Co.,Ltd. / Uno Corporation. / Trusco Nakayama Corporation. / Tezuka Corporation. / Nishino&Co.,Ltd. / Morita Corporation. / Mito-Kogyo Co.,Ltd. / Makoto Co.,Ltd. and so on.
Main export countries U.S.A / Canada / European countries / Africa / China / Taiwan / Korea / Asean
Other 70 countries

■Company Histrory

1950 July Established under the name of TOKYO ELECTRIC CLOCK CO., at 3155 Naruta-cho, Okaya-shi, Nagano Prefecture
1952 January Restarted TOSHIBA Dial Gauges production based on regulations of measurement.
1961 January Appointed as a model factory from The Small and Medium Enterprise Agency
1962 December Renamed Teclock Corporation
1965 October Durometer production and sale started
1967 June Authorized as the export contribution company by the Minister of International Trade and Industry
1978 June Digital sensor and Digital Dial Gauges production and sale started
1978 November Toshikane Arai, founder of the company, received an award from the government as the achievement of the development of the precise measurement instrument industry
1987 June Digital Thickness Gauge, Digital Depth Gauge, Digital Caliper Gauge and Digital Durometer production and sale started
1990 August Constant Pressured Thickness Measuring Instruments production and sale started
1996 November Tadao Yajima, director, received the award as by the achievement of ISO standard establishment
1997 September Awarded G mark good design from the Minister of International Trade and Industry with New Depth Gauge
1997 December Acquired ISO9001(JET-0085)
1998 January Digital Indicator and Digital Counter production and sale started
2001 July Renewal catalog, Digital catalog and set up HomePage
2006 February GS-610, automatic hardness tester, production and sale started
2008 May GS-680 that is the Totally Automatic type IRHD M method Micro size as Japan’s first domestically built, production and sale started
2008 June Introduced GS-744G on TV
2011 April Hideaki Arai, president, received the award from Okaya-city as a city contributor
2013 November Renewal GS-680sel adding the other measurement methods according to the several standards.
2015 April Kentaro Harada took up as president
2016 November Announced SmartMeasure™, IoT solution at JIMTOF


  • Head quarter / Plant / Nagano Office / Overseas Sales & Marketing div.
    2-10-3 Naruta-cho Okaya-shi Nagano
    394-0042 Japan

  • Eastern Japan sales Office
    3-25-14-110 Minami-Ooi Shinagawaku Tokyo
    140-0013 Japan

  • Western Japan sales Office
    2-1-31-305 Nagatahigashi Higashiosaka-shi Osaka
    577-0012 Japan