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Eta Unitas Caliber 6498 2

ETA/Unitas Caliber 6498-2

Eta Unitas Caliber 6498 2

Manufacturer ETA
Caliber Number 6498-2
Base Caliber 6498
16.5”’ (36.6mm)
4.5mm thick
Vibrations Per Hour 21,600 bph (3 Hz)
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
Too many to list (add yours in the comments below)

The ETA/Unitas caliber 6498-2 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 6498-2 is often mixed up with the ETA/Unitas 6497-2. 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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Eta Unitas Caliber 6498 2 Drawing

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This is my favorite movement. Easy to wind, looks great, keeps great time. I always thought the 2 was a newer version with some updates. Thank you for the information here, now I know it’s a high beat. Now I want to check all of my watches to see if they are 1 or 2.

Longines Heritage Military 1938 - The Truth About WatchesThe Truth About Watches

[…] 1938 is powered by a [thinner] handwound movement. Its Longines caliber 507.2 is based on the ETA/Unitas 6498/2, a modified pocket watch movement born just after World War […]