About the Ansonia “Crystal Regulator No. 4” Clock
Title: Ansonia Crystal Regulator No. 4: A Collector’s Delight in Antique American Timepieces
The Ansonia “Crystal Regulator No. 4” is a captivating mantel clock that graced homes and offices during the late Victorian era, approximately between 1880 and 1900. This model is renowned not only for its striking design but also for its precision in timekeeping, making it an essential addition to any antique clock collection.
The Crystal Regulator No. 4 boasts a sleek, minimalist design that showcases the craftsmanship of the Ansonia Clock Company. The case is typically made from mahogany or walnut, with glass panels on both sides that reveal the intricate internal mechanics. The clock’s face features a clear, frosted glass dial with Roman numerals and a minute track, adding to its elegant aesthetic.
What sets the Crystal Regulator No. 4 apart is not only its distinctive design but also its unique movement system. This model features Ansonia’s patented “Crystal Movement,” which uses a pendulum suspended in a dish of liquid to reduce friction, resulting in exceptional accuracy and smooth operation. Additionally, the clock’s slim profile and ornate details make it an excellent conversation piece for any collector.
Notable features include the finely detailed cast bronze movement cover, the elegant filigree-work on the dial surround, and the adjustable leveling feet to ensure the clock stands upright. The Crystal Regulator No. 4 is a testament to Ansonia’s commitment to quality and innovation during the 19th century, making it an invaluable addition to any antique clock collection.
Auction Records and Price History
The following 5 auction record(s) show actual sale prices for the Ansonia “Crystal Regulator No. 4” model clock. Prices vary based on condition, originality, and current market demand. Search for more records on AntiqueClocksPriceGuide.com.

C.1905, Ansonia Royal Bonn, “Crystal Regulator No. 4” shelf clock
in good original condition. This clock is the color of a light gray pearl, with a rainbow glaze, and gold and green highlights. Porcelain dial and all beveled glass are excellent, and there are no chips nor cracks in the case. A few of the gold highlights have been rubbed off due to regular dusting. Retains original fancy pendulum with cast and gilt top and bottom. Runs and strikes OK, but would benefit from cleaning. There has been considerable demand for these Bonn crystal regulators over the past few auctions. Height 17 º”
Sold: $3,000 | Date: 4/21/2001 | Source: R.O. Schmitt Fine Arts

C.1905, Ansonia “Crystal Regulator No. 4”
in excellent original condition. The only minor items to mention are a couple of hairlines in the dial. The rest is immaculate and just the way we like to collect them. The outstanding coloration on this particular clock speaks for itself; we took the photo in sunlight so there would be no doubt about the colors, and there are some resultant shadows on the dial. Note this clock case is identical front and back, including decorations. See lot 11 also. Height 17″ Reserve $3100
Sold: $4,575 | Date: 5/8/2000 | Source: R.O. Schmitt Fine Arts

Ansonia Clock Company “Crystal Regulator No. 4”, ca 1906.
This is an early model No. 4; some of the models made in 1914 had flower decorations and a different top design. If you have Ly-Ansonia, check pages 134-138 to examine the complete set of eight clocks. You will notice that many were in the Jean Braucht collection. This clock and the following No. 1 were part of the Braucht collection of perfect Royal Bonn Crystal Regulators. This one is Cobalt Blue, 17.75 inches tall, plenty of gold accents, polished brass and rich gold ornaments, Royal Bonn top and base, beveled plate glass on all sides, twopiece porcelain dial with visible escapement. As always, the movement is 8 day, half hour gong strike. The Braucht’s spent over 40 years acquiring and restoring their set of perfect crystal regulators. Ly-Ansonia, page 136.
Sold: $4880 | Date: January, 2005 | Source: Horton’s Antique Clocks

Ansonia Clock Co., New York, NY, “Crystal Regulator No. 4” in a gilt and brass case with a Royal Bonn top and base and a spring driven, 8 days, time and hour/half-hour strike movement with a visible escapement, c1914.
The porcelain top and bottom are both in excellent condition with no damage or cracks, The brass, gilt and beveled glass case is in excellent condition. The porcelain dial is in excellent condition with no hairline cracks. The hands are original. The movement is signed, A great example from one of the top of the line sets of Ansonia Crystal Regulators. Ht 17 1/2″.
Sold: $1,700 | Date: October 25, 2015 | Source: R. O. Schmitt Fine Arts

C.1914, Ansonia, Royal Bonn, ÓCrystal Regulator No. 4Ò, porcelain base and top, 4-glass mantel clock, time and strike.
Condition: There are some hairlines in the porcelain dial (no chips) around 1-2 oÕclock that have turned dark; no chips. Otherwise this clock is in excellent original condition, and sure to command a lot of interest. Nice Bonn trademark on base. Height 17.75 inches.
Sold: $3,800 | Date: October 31, 2004 | Source: R.O. Schmitt Fine Arts