ETA 2671-3024 Incabloc

Quantity	Discount (%)	Price
1 - 2	—	$10.00
3 - 4	5 %	$9.50
5 - 9	7 %	$9.30
10 - 14	10 %	$9.00
15+	15 %	$8.50

Quantity

Discount (%)

Price

1 - 2

—

$10.00

3 - 4

5 %

$9.50

5 - 9

7 %

$9.30

10 - 14

10 %

$9.00

15+

15 %

$8.50

Quantity	Discount (%)	Price
1 - 2	—	$10.00
3 - 4	5 %	$9.50
5 - 9	7 %	$9.30
10 - 14	10 %	$9.00
15+	15 %	$8.50

Product Description

The ETA 2671-3024 Incabloc is a genuine Swiss-made shock protection component designed for the ETA 2671 automatic movement family. The Incabloc system protects the delicate balance staff pivots from impact damage by using a spring-loaded jewel setting that deflects under shock and returns to its original position. This component is widely used in the ETA 2671 and 2688 calibers, as well as compatible movements like the ETA 2640 and 2824-2, making it a critical part for professional watch servicing and restoration.

Features & Function

Genuine ETA/Incabloc part – authentic Swiss-made shock protection component for ETA 2671, 2688, and compatible calibers

Proven Incabloc technology – lyre-shaped spring allows the jewel setting to deflect under impact, protecting delicate balance staff pivots

Essential for balance assembly – provides critical protection for the balance staff during daily wear and servicing

Broad compatibility – listed for ETA 2671, 2688, 2640, 2824-2, and 2836-2 movements

Precision-engineered – manufactured to ETA/Incabloc original factory specifications

Specifications

Part Number: 2671-3024 / 173.03 (Incabloc spring reference)

Compatible Movements: ETA 2671, 2688, 2640, 2824-2, 2836-2, and related calibers

Movement Diameter: 17.2 mm (7¾”’) – ETA 2671

Movement Height: 4.80 mm – ETA 2671

Jewels: 17/21/25 (varies by version)

Frequency: 28,800 vph (4 Hz)

Power Reserve: ~38 hours

Shock Protection: Incabloc system (ST spring 173.03)

Origin: Switzerland (ETA / Incabloc factory part)

Condition: Brand new

Applications

Service and overhaul of ETA 2671, 2688, and 2640 movements

Balance assembly repair – replacing worn or damaged Incabloc shock springs and settings

Shock protection restoration – restoring proper impact protection after balance staff replacement or servicing

Suitable for professional watchmakers and experienced repair technicians

FAQs

1. Is this a genuine ETA/Incabloc part?

Yes, this is a genuine Incabloc shock protection component used in ETA 2671 movements, made in Switzerland. The spring reference 173.03 is specifically listed for ETA 2671, 2688, and 2824-2 calibers .

2. Which movements is this Incabloc compatible with?

This Incabloc component (spring 173.03) is compatible with ETA 2671, 2688, 2640, 2824-2, and 2836-2 movements . The ETA 2671 is a 17.2 mm movement widely used in ladies’ watches .

3. What is the function of the Incabloc system?

The Incabloc system uses a lyre-shaped spring to suspend the jewel setting. When a shock occurs, the spring allows the jewel setting to deflect, letting the stronger shoulder on the balance staff absorb the impact rather than the delicate pivots. After the impact, the spring guides the parts back to their original positions .