In the shop we sometimes hear it before we see it. A lovely old longcase starts striking and the pattern is, well, not neat. The blows arrive a touch ragged, or the count feels wrong, or the half hour seems to be getting ideas above its station. People ask whether something is broken. Sometimes yes. Just as often the clock is telling an older story about how hours used to be reckoned, or how striking was engineered before the age of uniform solutions. The sound is a clue. A politely noisy footnote in brass and bell metal.
First, a bit of plain mechanics makes life easier. There are two classic ways an antique clock “knows” how many blows to strike. The earlier system is the count-wheel. Imagine a wheel with notches of different lengths around its rim. Each hour releases the train until a notch stops it again. Since the notches are unequal, the cadence of the blows can feel uneven, and wear or dirt only exaggerates that lilt. Later makers popularised the rack-and-snail system, where a comb-like rack falls onto a cam shaped like a twelve-step spiral. This usually gives brisk, tidy counting, and is less prone to drifting off the number, though it is not immune to neglect. Either way, if an old clock is striking the “wrong” number, the fix is often simple alignment and a good service rather than surgery.
Now the musical oddities. Continental and Dutch movements often give what English ears assume is an “uneven” half hour. On many Dutch longcases the hours are struck on a large bell, but at the half hour a small bell sounds the number of the coming hour. Half past six, you hear seven. It is not a mistake. Dutch time talk meets Dutch striking. If you grew up with “half seven” meaning 6.30, the logic lands instantly. For visitors it can feel like a practical joke the first week, then oddly sensible. Better safe than sorry, check the bell before blaming the hands.
Another source of unevenness is historical, not mechanical. Medieval Europe commonly divided daylight into twelve hours and darkness into twelve hours, no matter the season. Summer hours lengthened, winter hours shrank. Those are the so-called temporal or unequal hours. Most domestic clocks later marched to equal hours, but civic dials and a few traditions hung on. In parts of Italy, “Italian hours” counted 24 from sunset, so the last hour before the next sunset could demand a full 24 blows. Nothing wrong with the train, just a different day’s grammar. Stand in front of an old tower dial showing 1 to 24 and the pattern clicks. It is a different map of the same day.
Wear and tear adds its own swagger. Dried oil, a lazy fly governor, a rack hook that does not fall cleanly, or a minute hand positioned a hair off can all skew the rhythm. You might hear a long pause before the last blow, or a skipped count that puts the next hour out of sync. This is the horological equivalent of a piano with one sticky key. A competent clean and a few adjustments usually put the music back in step.
If you want a homely picture of all this, think of the strike as a drummer following two kinds of sheet music. Count-wheel is like a page with odd bar lengths scribbled by hand. Charming, but the beat breathes. Rack-and-snail is the printed edition, straighter bars, fewer surprises. Switch scores, you change the feel, not the song. Add Dutch striking and you have a drummer who cues the next chorus half a bar early. It sounds cheeky until everyone learns the arrangement.
What should a collector or curious listener do. First, listen twice. Are the blows correct but spaced irregularly. That points to count-wheel character or light maintenance. Are the numbers themselves “wrong” at the half hour, especially on a continental longcase. That might be Dutch striking. Does a civic clock hammer on past twelve with heroic stamina. Possibly a 24-hour dial or a vestige of Italian hours. If the count is plainly off the dial reading, or the half hours wander, it is probably time for a service and alignment. No need to panic. These trains are sturdy and forgiving.
In short, the “uneven” you hear may be one of three things. A design choice from the count-wheel era. A cultural choice like Dutch half-hour striking or Italian sunset counting. Or simply an old instrument asking for a clean. Any of the three can be set right, or appreciated as is, once you know which language the clock is speaking. Talk to us about repairing your antique clock. We are based in Perth since 2002. You can reach us at 0404 197 597 or in our shop at Unit 23 Chelsea Village, 145 Stirling Highway, Nedlands 6009 WA.