This listing is for one (1) balance complete for Gruen caliber 330. This movement was used in many early Gruen Curvex, Wristside and Driver watches. I actually have two of them, both are in similar condition. One with blue hairspring and one with silver one. So, you can choose which one you want me to send once you pay for it. The balance wheels are straight with good pivots. Both hairspring will need a bit of tweaking before installation, but they are intact and coils are mostly even. Please see the pictures! I have many other parts for Gruen caliber 330. I don't have time to list them all, but if you need anything else for this caliber, send me a message and I'll list it. Thanks.
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