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I offer you this watch 
Vintage AGAT 4282 15 jewels big medical stopwatch doctor chronometer pulsometer
Accuracy class: third
Type of mechanism mechanical with manual winding
Heart rate measurement range: 35 to 160
Respiratory rate measurement range: 7 to 50
Time measurement range: 1 to 60
Number of ripples for one frequency measurement: 30
Number of breath cycles during one measurement: 60
Operating temperature range, °С +10...+35
To control the arrows, the stopwatch mechanism is equipped with a special single-action lever device.
Start, stop and return of the arrows to zero is carried out by successive pressing the crown
Watch Stopwatch medical USSR. Mechanical device for determining the heart rate. In the pre-digital era, in addition to ordinary stopwatches, there were many special ones, tailored to the needs of a particular profession.
Medical stopwatch for measuring heart rate and respiration, USSR from the collection. In excellent working order. Will be interesting for a collection.
If you look at the glass at a right angle, it is very difficult to see the cobwebs and scratches on the glass.
But if you look at the glass in good light and at a large angle, you can clearly see the web. I tried to show you in the photo.
Also on the body is missing one mounting leg.
STYLE: Medical STOP WATCH
JEWELS: 15
CASE SIZE: 2.96" (75 mm)
THICKNESS 0.82" (21 mm)

 The stopwatch is used.
They have been restored by the master
Cosmetic condition: see photos,some shades in the photograph may differ from actual
Additional photos can be sent
You can ask me questions before buying, I try to answer quickly.
Shipping - 9$ (worldwide) 9-22 days
Send the next day after payment. Send the track code.
I combine items, so you can save on shipping by ordering two or more lots.
Items are well packed.
I'm glad that you are interested in lots that I sell.
Wish you a good shopping.