Manufacturer | Oris |
Caliber Number | 677 |
Base Caliber | ETA 7754 |
Vibrations Per Hour | 28,800 bph |
Power Reserve | 48 hours |
Jewels | 25 |
Functions | Hours, minutes, small seconds, chronograph, gmt, date |
Country of Manufacture | Switzerland |
Known Models | Oris TT3 |
The Oris caliber 677 is a modified version of the ETA/Valjoux caliber 7754.
The caliber 677 in the photo above was found in this Oris TT3 Second Time Zone Chronograph watch.
Have you had experience with this caliber from Oris? Talk about it in the comments below.
Recent Comments
Dufrane Watches uses the Ronda-150 and i own a Barton Springs II watch from them…
Thanks, man. Yeah, definitely.
No worries! It's understandable. Thank you very much for coming back to leave a follow-up…
You're right this page is listed as 687 not 687.5. My last comment was an…
Thank you for coming back to share your accuracy experience with the community :)
I want to add the info regarding accuracy of a/m watch. It gains abt. 4…
Thank for for taking the time to point out the error in the jewel count!…