| Mannufacturer | ETA |
| Caliber Number | 2671 |
| Movement Type | Automatic, self-winding mechanical |
| Lignes | 7 3/4”’ |
| Diameter | 17.2mm |
| Height | 4.8mm |
| Jewels | 25 |
| Power Reserve | ~38 hours |
| Vibrations Per Hour | 28,800 vph, 4Hz |
| Shock System | Incabloc |
| Regulator System | Etachron with fine timing device |
| Features | Central hours; central minutes; central sweeping seconds |
| Hacking Seconds? | Yes |
| Country of Manufacture | Switzerland, Swiss made (v8) |
| Known Models | Hamilton Face to Face (H32856705) |
This ETA caliber 2671 was found in a Hamilton Jazzmaster Face2Face watch which has dual automatic movements.
Because of the double movement design, small movements were necessary. The small size is a notable feature of the 2671.
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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…