Tiwac is a Division of Walchandnagar Industries Ltd.  This Division, before being amalgamated with Walchandnagar Industries Ltd., in 1982, was known as Tiwac Industries Ltd., This was set up in  1962-63 to manufacture Mechanical Alarm Time Pieces in technical collaboration with Louis Schwab of Switzerland.

Most of the machineries installed are imported from Germany, Switzerland and England and are very much suitable for manufacturing precision components.  Till the year 1995-96.  One day alarm Time Pieces was the main product and was manufactured in large quantity.  Tiwac has the distinction of introducing Centre Second Models in India for the first time.

Tiwac Division has successfully developed many products which are precision in nature viz, Synchronous  Multiplex Timer used in Sugar Factories (an import substitution),  Sector Mechanism for Dash Board Instruments and Industrial Pressure Gauges, Precision components for Electrical Meters, Timers, Electronic Gadgets, Automobiles etc.

In keeping with tradition of Walchandnagar Industries Ltd., Tiwac Division,  diversified  in a big way to manufacture Pressure Gauges and Temperature Gauges in this year 1992-93.  Since then it has never looked back.

The Manpower consists of some of the best brains from the Precision Industries perfectly suited for the production of these products.

At present Pressure Gauges in the size 40 mm (1.5") to 300 mm (12") having pressure range 0 to 700 kg/cm2 (10000 Psi) and Vacuum are manufactured.  The various types of gauges manufactured are liquid filled, diaphragm seal, low pressure diaphragm, all SS gauges, Electrical contact gauges, Master gauges, etc Pressure Gauges are manufactured as per IS 3624 of 1987 specifications.  Tiwac Pressure Gauges are extensively used in Industrial Boiler.  Thermal Power Stations, Nuclear Power Corporations, Petrochemicals Fertilizers Factories, Sugar Machinery,  Industrial and Marine Gear Boxes, etc.

At Tiwac Temperature Gauges are manufactured in Mercury in Steel Type and Bimetal Type in the size from 100mm (4") to 300mm (12") having temperature range from -38⁰C to 600⁰C.

Tiwac's Organisation culture centres on Quality, Precision and Time.