It is 28 inchehs long, 1/2 wide and has a marking 27 4 CL
It looks like style S380 or S385 to me, what is the correct style?
I need two plus Four Clips. Thanks
Regards, Yong
Balance spring
Handy Person from Naperville, IL
May 19, 2025 3:34 pm
5 user uploaded images
4 Replies
Bob from SWISCO
May 19, 2025 10:30 pm
Hi Yong. It looks like this could indeed be the S380-28, though the S378-28 is also possible. The only difference between these two balances is the 'depth' of the bottom nylon shoe, or 'heel-to-toe' measurement. See the diagram below. Measure the shoe depth to see what matches best. For a stamp option choose 2740.
Comparison of the S378, S380 and S385 balance shoes.
If by clips you mean the Take-Out clips, see if the 16-002 matches what you need. Let me know if you have questions.
Handy Person from Naperville, IL
May 20, 2025 7:54 am
Hi, Bob,thanks very much for your super fast reply? I measured the shoe depth and it is 15/16 inches, I believe it was 1 inch but it worn out after 35+ years of usage! So you are right, S380-28 is what I need. Thanks again! Regards, Yong
Bob from SWISCO
May 22, 2025 2:45 pm
Hey Yong. Yes, if it's greater than 7/8" but just a little under 1", then it is probably the Series 380. These shoes do indeed wear down from age. Let me know if you need anything else.
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