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This is a genuine ETA E03.001-4000 circuit block electronic module for the E03.001 movement, made in Switzerland. It serves as the core control component of the ETA E03.001 ultra-thin quartz movement, generating the precise 32,768Hz quartz oscillation signal to drive the stepper motor for accurate timekeeping. Featuring 6 jewels and designed for 335 (SR512SW) batteries, it offers a battery life of up to 55 months. This product is brand new and original, intended for servicing and repair of E03.001 movements.
Brand：ETA (Swiss)
Compatible Movement：E03.001 ultra-thin quartz caliber
Part Number：E03.001-4000
Origin：Made in Switzerland
Quality：Genuine original, brand new
Function：Generates and processes time signals, drives stepper motor
1. Is this circuit module an original ETA genuine part?
Yes, made in Switzerland.
2. Which movements is this circuit module compatible with?
It fits the ETA E03.001 ultra-thin quartz caliber (5½ × 6¾ ligne, 13.00 × 15.15mm, 1.35mm height). This is a two-hand (hour/minute) movement featuring 6 jewels and using a 335 (SR512SW) battery with a battery life of up to 55 months.
3. What happens if the circuit module is damaged?
The circuit module is the core control component of the movement, generating the precise 32,768Hz quartz oscillation signal and driving the stepper motor. Damage can cause stoppage, inaccurate timekeeping, or abnormal hand movement. The E03.001 uses a 335 battery (1.55V)—circuit failure directly impacts performance. Timely replacement is recommended.
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