In the Seventies and Eighties

After a short period of uncertainty it became apparent that leaving MacFadden Bartel was actually a step forward - and the timing was excellent. The Horolovar Company was stable and profitable. The Guide was in its fifth edition and selling well. The Guide had also proved its intent by demonstrating to the clockmaker that 400-Day clocks were actually one of the easiest clocks to repair.

The convenience provided by the Guide coupled with attractive packaging and professional marketing lead to consistently increasing sales of Horolovar Suspension Springs.

The senior employees now were two motherly types. One filled parts orders. The other did the bookkeeping.

Charles now tapped a significant new base for employees - the local high-school students. Over 90% of Bronxville High students went on to college. They were intelligent and motivated. The students filled and shipped orders for Horolovar products, others assembled suspension units. A senior student was designated supervisor and between them they organized and performed all the tasks necessary to maintain the company, with only occasional need to consult "Mr. T".

In 1970 Charles was 62 and in the quite enviable position of being able to devote all his time to doing what he loved - and make good money too.

The business was still located in the basement of the family home. Both children had moved out by now. With the loss of income from MacFadden-Bartel, the company began to maintain the Terwilliger home and household expenses. Charles' wife Roberta had always been the family bookkeeper and every month a check was taken upstairs.

Colleagues had already dubbed him "Mr. 400-Day Clock". I always saw him as "The only fish in a small (but expanding) puddle"

That he enjoyed for the rest of his life

The Horolovar 400-Day Clock Repair Guide

The Guide and the springs it supported were the bread and butter. He continued to improve, and finally completely overhaul it. See

Horolovar Reproductions of American Clocks

There were five reproduction clocks produced by The Horolovar Company See

Having been in the magazine publishing business for some 40 years and single-handily publishing the Repair Guides and Silent Auction catalogs, Charles had the background he needed to enter the field of professional book publications.
The Charles Terwilliger Silent Auctions
The silent auctions were really a source of enjoyment. He got to collect and enjoy the rare and unusual clocks he loved - then he could catalog and sell them for a profit.

The Watchcock Collection

I guess he just found a few of these beautiful little treasures of horological history someplace - then realized they could be obtained reasonably inexpensively and that no one was collecting them.

Clock Trade Enterprises

At the time of his death in February 1988 Charles Terwilliger operated The Horolovar Company, largest supplier in the world of various repair aids for 400-Day Clock repairmen; and Clock Trade Enterprises, a subsidiary company, involved with other horological activities, including publishing and distributing horological books.