Posted 11 years ago
geo26e
(154 items)
In the 60s and 70s, Seiko produced a wide range of very interesting affordable mechanical chronograph watches. This particular one is unofficially known as the 'Doctor's Watch' because you can utilise the chronograph function to measure heart beats per minute.
The way to do it is to start the stop watch, count 10 pulses from the wrist and then press the stop button immediately on the watch. You will then be able to read the 'pulse per minute' off the outer ring on the dial via the red minute hand.
Hope you have enjoyed this posting!
![Vintage Seiko Watch 6309-729A [F1]](https://i.ebayimg.com/images/g/Qq8AAOSwonVmvTXo/s-l225.jpg)
Gracias snoppy por visitar y darle me gusta a mis post! Un abrazo!
Thank you gargoylecollector & Aldo for the appreciation!
Thank you agh for visiting and loving the post! Very much appreciated!
Thank you Sean!
George, elemplo prefecto. OOPS, George perfect example and love it!!!!
Kerry, muchas gracias por tu comentario perfecta! Muy apreciado!
George, I'd answer in Spanish, but my English spelling is bad enough, lol You're very Welcome
Thank you shawnicus, aldo & Phil for stopping by and loving the post! Very much appreciated!
thank you tom 61375 for the visit and appreciation!
Thank you pops for visiting and loving the post! Big cheers!
LOL! how about we trade a Mint Condition Dollar watch? This one, id be wearing!
Thanks ZZ for stopping by, loving the post and your kind comments! Very much appreciated!
Thank you shawnicus & and tom61375! Much appreciated!
Grateful thanks to you Elisabethan for stopping by and for the appreciation! Big cheers!