ISA 8171 Movement 10H Wheel

ISA 8171 Movement 10H Wheel

$1.50
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Quantity Discount (%) Price
1 - 2 — $1.50
3 - 4 5 % $1.43
5 - 9 7 % $1.40
10 - 14 10 % $1.35
15+ 15 % $1.28
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Product Description

This is a genuine ISA 10H wheel for the 8171 movement, made in Switzerland, designed specifically for the ISA 8171 quartz chronograph caliber. It serves as the drive component for the 30-minute chronograph totalizer at 10 o’clock, transmitting power to the chronograph minute hand as one of the core transmission components of the chronograph function. This product is brand new and original, not a generic replacement part.

Specifications

  • Brand：ISA (Swiss)

  • Compatible Movement：8171 quartz chronograph movement (including 8171/201, 8171/202 variants)

  • Part Name：10H Wheel (30-minute chronograph totalizer drive at 10 o’clock)

  • Origin：Made in Switzerland

  • Quality：Genuine original, brand new

  • Function：Drives the 30-minute chronograph totalizer hand at 10 o’clock

  • Movement Size：11½ ligne (25.6mm)

  • Movement Height：3.70mm

  • Battery：395 (SR927SW)

  • Function Type：Chronograph (1/5 sec, 2‑eye layout: 60s counter at 2H, 30min totalizer at 10H)

FAQ

1. Is this 10H wheel an original ISA genuine part?
Yes. It is an original ISA factory part, made in Switzerland. 

3. What happens if the 10H wheel is damaged?
The 10H wheel drives the 30-minute chronograph totalizer at 10 o’clock. Damage can cause the chronograph minute hand to stop or accumulate incorrectly, affecting the chronograph function. As a continuously driven component in the chronograph mechanism, timely replacement is recommended.

4. Does this part come with installation tools or instructions?
No. This is a single precision component. Installation requires professional tools and disassembly of the chronograph mechanism; work should be performed by a qualified watchmaker.

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