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Eta 6498 1 Mechanical Movement

ETA/Unitas Caliber 6498-1

Eta 6498 1 Mechanical Movement

ManufacturerETA
Caliber Number6498-1
Base Caliber6498
Diameter
16.5”’ (36.6mm)
Height
4.5mm thick
Vibrations Per Hour18,800 bph
Power Reserve53 hours
Jewels17
Lift Angle
44 degrees
Hacking?No
FunctionsHours, minutes, small seconds (at 6:00)
Country of ManufactureSwitzerland
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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Ed Sadler
Ed Sadler
• 5 months ago

This is my favorite movement. I love winding it. Currently have a Dufrane Bergstrom with one, but it’s not as nicely finished as the one pictured here.

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New Watch Alert: 3/27/2020 - The Truth About Watches
• 2 months ago

[…] historical echoes are more than skin deep – the 336’s hand-wound Unitas 6498 movement was originally designed for pocket watches. All things being equal – which […]