Manufacturer Seiko Caliber Number 6R21, 6R21A Vibrations Per Hour 28,800 bph Power Reserve 45+ hours Jewels 29 Parts 208 Hacking...
6R21A
Most Liked
Part of the 
network of watch sites
network of watch sites network of watch sites
That movement looks inexpensive and probably Chinese to...
Julian Mamo , 2 days ago
Welcome to Caliber Corner! Glad you have you in the com...
calibercorner , 2 days ago
Hey there, first post here! Figured you guys would be a...
holdorf333 , 3 days ago
HI, new here, found this forum while looking for some i...
Brandje , 5 days ago
Recent Comments
Thank for for taking the time to point out the error in the jewel count!…
Your comment wasn't deleted lol. It was in spam for some reason. Thanks for sharing…
The Indian watch company HMT is making something they call the Nuovo with this movement.
Hi, What movement could be used as a replacement for this discontinued model? Regards David
Movement also used in Rotary Chronograph GB03633/04
The L687.5 has 27 Jewels not "25". Source (go ahead and delete my comment again.…
I have recently purchased a Longines with a 687.5 movement. "27 Jewels" is engraved into…