What is the highest level of complexity? Minute Repeater, some people vowed; Tourbillon, others also disagree, watch fans have their own words, can not agree. However, in the field of chronographs, no matter the standard timing or flyback timing, it is unable to challenge or even shake the supreme status of Split-Seconds / Rattrapante.
Rolex Ref. 4113 dual chronograph chronograph
The distinctive feature of the double chase chronograph is that it is equipped with two seconds hands (different from the ordinary chronograph), usually one of which is decorated with a hollow ring and the other with a solid tip. The double-tracking chronograph is really not only because of its unique beauty, but also because its mechanism is interesting and fun. At the ‘Start-Stop-Reset’ theme auction held in Geneva in May this year, Rolex’s 4113 double-tracking chronograph sold 2.4 million Swiss francs. What’s so special? This article will summarize the double-tracing chronograph, especially the antique models.
Why are two second hands better than one?
First of all, what is the double-tracking mechanism and why do I need two chronograph hands? If it is an ordinary chronograph, start the chronograph function, a long second hand starts to record the running time; the long second hand rotates once, and the minute chronograph hand (usually set at the 3 o’clock position on the dial) advances one space, and then the long second hand starts to record the second Minute running time. But what if you want to accurately calculate the time of an intermediate event-for example, the lap time-while still recording the total running time? One way is to use two or three chronographs, starting at the same time and stopping as needed.
The dual chase mechanism allows you to do this, and only uses a chronograph. Activate the dual chronograph chronograph to activate both hands simultaneously. When the first event occurs, pressing the button stops one pointer (usually a solid tip pointer) and the other pointer continues to move. Record the time, press the button again, the stopped pointer will ‘catch up’ with the running pointer, and the operation can be repeated as needed. Start, the second hand overlaps; stop one of them, the second hand ‘Split’, which is also the origin of the name of the split-second chronograph (Split-Seconds).
Patek Philippe dual chronograph chronograph
This mechanism first appeared in pocket watches in the 1880s. In 1932, Patek Philippe launched the first dual-tracing chronograph watch with a diameter of 30 mm, a single button (with crown), and an enamel dial. In 1999, it sold $ 3 million at the Antigoron auction. However, most of the dual-secondary chronograph calibres were manufactured by Valjoux or Venus in the mid-20th century.
Learn about the traditional double-chasing chronograph mechanism
The Venus movement uses the most common double-tracking chronograph mechanism, with unique tines on each side of the central gear. This is the jaw, which we will talk about later. From the 1940s to the 1950s, Venus movements were supplied to brands such as Breitling and Record Watch Co. Soon after, these movements were discontinued.
Note that the movement is equipped with two central gears-the upper gear is connected to the chronograph second hand (the solid tip second hand), and the lower gear is connected to the main chronograph second hand (the hollow ring second hand). The function of tracking the second hand is achieved by a set of levers that constitute the jaws of the clamp. The upper gear is mechanically connected to the lower gear by means of a spring lever and a ruby roller.
Venus 185 dual chronograph chronograph movement
Press the ‘Separate’ button, clamp the jaws together to clamp the upper gear, while allowing the lower gear to continue to rotate, record the time. The upper gear’s rollers and levers stop running, but the gear cam is still pressed against the small spring, and the ‘disengagement’ time can be recorded. Reactivated, the jaws of the clamps open, and the upper gear automatically rotates under the action of a small spring. The two chronograph hands overlap again.
The dual tracking mechanism is not included in ‘High Complication’, but it is one of the three major functions of traditional ‘Grand Complication’ (the other two are perpetual calendar and minute repeater). The transcendental status of the mechanism stems from the fact that in order for it to function properly, all adjustments must be extremely precise, which is a test of the watchmaker’s skill.
For watches equipped with the Venus 185 movement, the button at 2 o’clock is used to start the chronograph, the center button is used to pause and ‘detach’, and the button at 4 o’clock is used to reset the entire timing mechanism.
In general, the timing feature is so exciting because it provides an interactive experience for the wearer. The great versatility of the clock, no matter how complicated, is passive-the moon phases, calendar, and even the tourbillon do not need to be activated. The timing function is practical and fun, and it can even be said to be sexy. Look at the button and press it lightly, something interesting happened. The physical interaction between the wearer and the watch gives the latter more meaning than just telling time information. This unique pleasure cannot be obtained from other types of functions. The double-tracking chronograph mechanism can further magnify this interactive fun.