My Sub and Speedy keep great time. You have to know how to position them when off the wrist. They both naturally run fast, however if I keep the Speedy wound daily and placed crown down it will slow and hold it's time. The longer the spring is unwound the faster it gets. This is why a daily wind will help keep a consistent time. The Sub I place face up and at a 30-45 degree angle with the top of the watch elevated. This keeps the time (no gain or loss). If it's too fast, I place the watch vertically and it will slow.
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