A pulsometer is a specialised scale printed on a watch dial or bezel that allows the wearer to calculate a patient's heart rate by counting a set number of pulse beats and reading the corresponding beats-per-minute value directly from the scale. The most common pulsometer scale is calibrated for 15 beats — the wearer starts the chronograph, counts 15 pulse beats, stops the chronograph, and reads the heart rate directly from where the chronograph hand points on the pulsometer scale. The scale does the mathematical conversion automatically, eliminating the need to calculate beats per minute manually. Pulsometers were developed as practical medical instruments in the early twentieth century, when physicians carried dedicated medical chronographs to take pulse readings during patient examinations.
In replica watches, pulsometer scales appear on Breitling-inspired and vintage doctor's chronograph references. The pulsometer scale is a printed element on the dial rather than a mechanical complication — it requires an active chronograph function to use but adds no mechanical complexity beyond the chronograph itself. In replica versions, the quality of the pulsometer scale printing — legibility, alignment, and contrast against the dial — is the primary evaluation criterion. The scale should be clearly readable in normal lighting conditions and correctly aligned with the chronograph subdial or outer chapter ring it is designed to work with.
In Practice
- Using a pulsometer requires an active chronograph. Start the chronograph, count the specified number of pulse beats (typically 15 or 30 depending on the scale calibration), stop the chronograph, and read the heart rate from the pulsometer scale on the dial. The scale converts the elapsed time into a beats-per-minute value automatically.
- Pulsometer scales are found almost exclusively on chronograph watches. The complication is historically associated with physician's watches — purpose-built medical chronographs designed for clinical use. In the replica market, pulsometer scales appear most commonly on vintage-inspired Breitling and Swiss chronograph references.
- In QC photos, buyers should verify that the pulsometer scale text is sharp and legible, with consistent ink density across all printed numerals. Blurry or inconsistently printed scale markings are a common finishing issue on replica pulsometer references and affect both readability and visual quality.
- The pulsometer scale is a dial printing element, not a mechanical complication. It does not require any additional movement module beyond the chronograph and has no effect on movement reliability or maintenance requirements. Its value is entirely visual and functional as a reading scale.
- Pulsometer scales are distinct from tachymeter scales, which measure speed over a known distance, and telemeter scales, which estimate the distance of a sound-producing event such as lightning. Dials that combine multiple scales — pulsometer, tachymeter, and telemeter — are called triple-register or multi-scale dials and appear on certain Breitling and vintage chronograph references.
Related Terms
Chronograph · Tachymeter · Tachymeter Bezel · Slide Rule Bezel · Sub-dial
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For a full buyer's guide to replica Breitling references — including chronograph types, movement options, and what to look for before buying — read: Complete Replica Breitling Buyer Guide