Last time out we addressed the inquiry of why city hall tick. This week, we’re turning our fist to i beg your pardon watches sweep…

Let’s start out through a clear distinction: last week’s…

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Last time out we addressed the concern of why watches tick. This week, we’re turning our attention to i beg your pardon watches sweep…

Let’s begin out v a clean distinction: last week’s concern was a “why” question, no a “which” question. And also That is critical to understand. Why? Because practically all watches that “sweep” also “tick”. The difference between sweeping and also ticking is all about frequency. And, to be honest, that is fairly an arbitrarily threshold. Over there is no universally agreed-upon an interpretation of when ticking becomes sweeping. Although ticking is normally meant to median one motion per second, declare a secs hand the moves twice per 2nd is sweeping would seem a bit of a stretch the the imagination. At finest you could call that a stuttering sweep, or a high-frequency tick… You get my drift.

You are watching: Sweeping second hand watches

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…a an extremely nice move indeed.

To us, in 2020, high-frequency have the right to really be characterized from 36,000vph upwards. That’s a practiced boundary between the two interpretations as 36,000vph equals 10 ticks per 2nd (28,800vph functions out together eight ticks every second). That makes for a an extremely nice move indeed.

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The answer

Going additional back, bag watches (and early wristwatches) more often 보다 not had actually a languid ticking rate of 18,000vph. That equals just 5 ticks per second (or 2.5Hz). That type of operating speed isn’t very suitable for wristwatches since of the number of shocks to which they are subjected. We’ll explain more about the in one more column, yet now, to the ANSWER… At lengthy last…

Some mechanically watches tick and also some high-frequency quartz watches sweep…

Generally speaking, mechanical watches sweep and quartz timepieces tick. Although, this is no universally true. Some mechanical watches tick (when a dead-beat seconds complication is installed) and also some high-frequency quartz the town hall sweep. Additional complicating matters is the advent of meca-quartz calibers, i beg your pardon both tick (for the time) and also sweep (for the chronograph).

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But in reality, only one commercially available driving device results in a true sweep, and that is the spring Drive system from grand Seiko. GS additionally makes part pretty tasty high-frequency models, however the creme de la creme of its production can be found in the genius of feather Drive. Have a look in ~ the above video clip to know the actual difference between a ticker and a sweeper.