analog_sheen
337
Yes that is correct!
Here is how I think about it. Both the sub-seconds and chronograph seconds hands have 1 minute to complete a single rotation. The 'distance' they need to travel is the circumference of circle they 'trace' with the tip of the their hands. That formula is circumference=( 2 * pi * hand length) , ignoring any counterbalance on the hands. Since distance=rate * time, you can compute the rate that the hands have to travel (in mm/tick) each tick, based on the bpm of the movement. The sub-seconds has to travel a much shorter distance in the same amount of time, and that comes across as a smoother motion to the eye.
Speedy Sub-dial Running Seconds.
It may be my 60 year old eyes, but the running seconds on the Speedy sub-seconds dial seems to have a very smooth running rhythm. I hardly see the “tick tock” motion that I see on other watches with a higher beat rate. I have an Omega f300 electric watch ...
Did you notice the main Chronograph seconds not aligned to perfect Zero?
I have a few Speedies and they all have similar misalignment which I don’t think it’s parallex error on my eyes. ...
Yes that is correct!
Here is how I think about it. Both the sub-seconds and chronograph seconds hands have 1 minute to complete a single rotation. The 'distance' they need to travel is the circumference of circle they 'trace' with the tip of the their hands. That formula is c...
Cool!
Thanks for your response. I love the mathematical response. I’ll do some calculations. 😊
Have a Speedy bought around 10 years ago
— a bit annoyed that it gains a daily 12 seconds or so in daily wear. Hand wound. Wondering whether it s worthwhile to send it in for service.
Your Speedy.
If it hasn’t been serviced in ten years, I would service it. The movement can be better regulated than 12/day. My Speedy is a year old and it’s at 2.5 seconds/day which is acceptable. And I wear mind almost daily. Just a thought. Mark
Your Speedy 2.
Edit to my post. Mine is plus 2.5 seconds/day. The plus sign doesn’t work, I guess.