ETA F06.111 – Technical Communication

General Overview

• Caliber: ETA F06.111

• Movement Type: Swiss-made quartz, 3-hand with central seconds and date display

• Date Window: Standard at 3 o’clock; variant available with date at 6 o’clock (F06.111-D6)

• Diameter: 11½ lignes (approximately 25.60 mm)

• Movement Height: 2.50 mm

• Total Height (including pinions): Approximately 4.20 mm

Technical Specifications

• Frequency: 32,768 Hz (standard for quartz movements)

• Number of Jewels: 3 synthetic jewels

• Hands Sizes:

  • Hour: 1.20 mm

  • Minute: 0.70 mm

  • Seconds: 0.20 mm

Battery and End-of-Life Function

• Battery Type: 371 (silver-oxide, 1.55 V)

• Battery Height on Movement: 2.62 mm

• Alternative Battery: 395 cell with a height up to 3.22 mm

• Battery Life: Approximately 36 months under normal conditions

• EOL (End-of-Life): The seconds hand jumps in 4-second increments when the battery voltage drops below approximately 1.30 V

Movement Functions and Features

• Display: Hours, minutes, center seconds

• Date Mechanism: Semi-instantaneous date change

• EOL Indicator: Visual warning for battery replacement

• Stop Lever: Activated when the stem is pulled out to time-setting position

Service and Compatibility

• Stem Type: Tap 10, compatible with ETA stem F06.111.405 or S401.2021

• Lubrication: Uses standard lubricants such as Moebius 9014 and 9034 for fine oil points, D5 or HP-1300 for high-friction areas

• Assembly Torque: Standard ETA torque recommendations apply; typically 0.6–0.7 Ncm for critical screws

• Environmental Notes: Proper disposal of lubricants and batteries is mandatory; avoid contamination of water systems

Variants

• F06.111 (Standard): Date at 3 o’clock

• F06.111-D6: Date at 6 o’clock

• F06.111-2: 2-hand (no seconds), available with or without date

• F06.111-SC: Shock-protected center seconds variant (if specified)

Testing Guidelines

• Voltage Testing:

  • Nominal: 1.55 V

  • EOL Trigger: <1>

• Current Consumption:

  • Normal: under 1.10 µA

  • In time-setting mode: under 0.50 µA

• Temperature Range for Testing: 20 °C to 25 °C (68 °F to 77 °F)

Compatibility and Replacement

• Direct Replacement For: ETA 955.112, 955.114, and other similar 11½ lignes quartz calibers

• Interchangeable Components: Bridges, date indicators, coil blocks, and train wheels from the F06 and 955 families

• Used In: A wide range of entry-level and mid-range Swiss watches, including brands like Tissot, Swatch, Hamilton, and others

Summary Table

Conclusion

The ETA F06.111 is a reliable and widely used Swiss quartz movement offering accuracy, compact size, and flexibility. With several variants and a long battery life, it is ideal for watchmakers and brands requiring a dependable movement with simple serviceability. Its compatibility with older ETA modules and standardized components makes it a preferred choice for both manufacturing and after-sales service.