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Is there a doctor in the house?
The Seiko 6139-6020 "Pulsations" is a vintage 1970s "doctor's watch" featuring a 40mm stainless steel cushion case, a caliber 6139B automatic movement with 17 jewels and 21,600 bph, and a rotating inner "Base 10" bezel for calculating heart rates. Key features include a 45-hour power reserve, quick-set day/date, and a distinctive silver or brown dial.
Detailed Technical Specifications:
- Case Diameter: 40mm - 40.3mm (approx. 45.69mm lug-to-lug)
- Case Thickness: 14mm
- Case Material: Stainless Steel (low profile cushion case)
- Movement: Caliber 6139B Automatic (17 Jewels)
- Functions: Hours, minutes, seconds, chronograph (60s, 30m), quick-set day/date, rotating pulsation bezel
- Dial: Silver sunburst or Chocolate Brown with applied markers
- Inner Bezel: Black/Silver "Base 10" pulsometer
- Crystal: Hardlex
- Lug Width: 19mm
- Production Era: Early 1970s (approx. 1969–1972)
Unique Characteristics
- Pulsations Bezel: Designed for medical professionals to measure a patient's pulse by counting 10 pulses.
- Movement: The 6139 is an early, highly reliable automatic chronograph movement with vertical clutch technology.
- Crown/Pushers: The crown sits partially flush in the cushion case, used to rotate the inner bezel
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Is there a doctor in the house?
The Seiko 6139-6020 "Pulsations" is a vintage 1970s "doctor's watch" featuring a 40mm stainless steel cushion case, a caliber 6139B automatic movement with 17 jewels and 21,600 bph, and a rotating inner "Base 10" bezel for calculating heart rates . Key fe...
Very nice 6139 version 👌🏻👍🏻👨🏻⚕️
Pulsograph scales are actually quite practical in a sense and generally much more useful in everyday life than tachymeter scales. I have two watches with them, albeit none a Seiko 😊🤷🏻♂️ ...
Thanks a lot 👍🏻🙏🏻
The dial is a piece unique but their addition of a pulsograph scale was well chosen 👏🏻😊
