The ETA 2836-2 is a reliable workhorse automatic mechanical movement from ETA SA, a Swatch Group subsidiary, widely used in mid-range Swiss watches for its day-date complications and robust performance.

​Key Specifications

Size and Build: 11½ lignes (25.6mm diameter), 5.05mm height, 25 jewels, lever escapement.

Frequency: 28,800 vibrations per hour (4Hz) for smooth seconds hand sweep.

Power Reserve: Approximately 42 hours when fully wound; bidirectional rotor with ball bearing.

Core Functions

This self-winding caliber features central hours, minutes, and seconds, plus day and date windows at 3 o’clock with quickset options. It supports manual winding and hacking seconds (second hand stops when setting time). Incabloc or Novodiac shock protection ensures durability, while Etachron regulation aids precision.

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Stem, Crown, Hands & Spares might be available for this movement.

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