| Manufacturer | ETA |
| Caliber Number | 6498-1 |
| Base Caliber | 6498 |
| Diameter | 16.5”’ (36.6mm) |
| Height | 4.5mm thick |
| Vibrations Per Hour | 18,800 bph |
| Power Reserve | 53 hours |
| Jewels | 17 |
| Lift Angle | 44 degrees |
| Hacking? | No |
| Functions | Hours, minutes, small seconds (at 6:00) |
| Country of Manufacture | Switzerland |
| Known Models | Votum Blue Ocean, too many to list (add yours in the comments below) |
The ETA/Unitas caliber 6498-1 is part of ETA’s Mecaline Specialies line of movements. It is a hand-wound or manual-wound movement and is considered to be one of the most common mechanical calibers on the market. This is essentially a pocket watch movement that has been adopted by the wristwatch.
6498-1 vs 6498-2:
The main difference between the 6498-1 and the 6498-2 is that the -1 beats at 18,800vph while the -2 beats at 21,600vph. Click here to learn more.
6497 vs 6498:
The caliber 6498-1 is often mixed up with the ETA/Unitas 6497-1. The main difference between these two calibers is that the 6498 has the seconds subdial at 6:00 and the 6497 has the seconds at 9:00. Click here to learn more.
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