Perhaps because of the beats per hour.

Jun 08, 2022,02:06 AM
 

Hello, and interesting question. 


I think the Seiko Shippo enamel models like you posted have the 6R15 movement, which I believe beats at 21,600bph. That means 360 beats per minute and therefore 6 beats per second. Maybe the markers are 1/6th of a second to have the second hand jump at each beat to those 1/6th markers? 

I don’t know for sure, but that’s the only explanation I can think of…hope that helps for whatever it’s worth, cheers!

  login to reply

Comments: view entire thread

 

I think perhaps because it looks good

 
 By: cazalea : June 8th, 2022-01:19
Functionality is not everything and besides it’s not a stopwatch; the second hand never stops so what difference would it make? I see it as a solid visual base on which those Roman numerals sit. Perhaps we could ask what aesthetic value all those little w...  

Your headline was good enough explanation for me!

 
 By: jml_watches : June 8th, 2022-10:02
And yes both those blue dialed presages look good. Cheers JML

Perhaps because of the beats per hour.

 
 By: MadSpaniard : June 8th, 2022-02:06
Hello, and interesting question. I think the Seiko Shippo enamel models like you posted have the 6R15 movement, which I believe beats at 21,600bph. That means 360 beats per minute and therefore 6 beats per second. Maybe the markers are 1/6th of a second t... 

Agreed. Many relatively recent Omega Speedmaster minute markers are divided into thirds . . .

 
 By: Dr No : June 8th, 2022-03:17
. . . for the same reason, to track the beat pattern. Art ...  

No, the beat rate is the same . . .

 
 By: Dr No : June 8th, 2022-18:11
. . . but Omega opted for legibility by condensing the up and down swing. Art

I'm not sure Omega has explicitly indicated the reason . . .

 
 By: Dr No : June 9th, 2022-06:22
. . . for dividing seconds into thirds, but Google search brings up several commentaries from watch media outlets confirming the rationale of matching beats to tick marks. First generation Speedmaster dials are segmented into fifths, corresponding to the ...  

This is the answer but a better question is...

 
 By: BigFatPauli : June 8th, 2022-12:50
Why is the area around the date aperture such a mess?

"such a mess" because 3 dimensions are not captured by 2 dimensional photo

 
 By: cazalea : June 8th, 2022-15:08
The peaks of the waves on the dial are quite a bit higher than the troughs, and the entire dial has a thick transparent coating which gives a magical effect when viewed at varying angles. At least with my camera I cannot capture the transition when they d...  

Maybe. As you said, it is hard to capture this in a photo...

 
 By: BigFatPauli : June 8th, 2022-15:34
But to me, it still doesn't look good. I think a small frame around the date would have added a small cost and would have eliminated this problem. The dial, otherwise, is lovely. Perhaps it is not visible in person, but it certainly impossible to hide it ... 

Never noticed it on mine tbh .

 
 By: Watchonthewrists : June 8th, 2022-06:35
Think its more visual then practical