Grandstone ETA 2834-2 swiss movement

Products Photos: Color: silver, nickel plating. MANUFACTURING INFO RMATION Model: ETA 2834-2, 2834 1. Shape and type Mechanical lever movement Self winding Jewels: 25 Jewels 2. Dimensions in mm Cal.2834-2 Overall diameter29.40mm Case fitting diameter 29.00mm Movement height 5.05mm 3. Functions Cal.2834-2 Instantaneous date and external day indicator, date and day corrector. Cal. 2834-2 Winding stem with 3 positions: Pos.1 Running position and manual winding. Pos.2 Quick correction of date and day. Pos.3 Time setting, optional stop-second. Optional stop-second and fine timing devices. 4. Principle of construction Main plate and bridges are made of brass. Oscillating weight of heavy metal with ball bearing Self-winding mechanism 5. Casing The dial is fixed by means of 2 dial fasteners. 6. Winding 6.1 With winding stem Turns mini: With help of motor: - self-winding mechanism assembled: speed max: 100t/min. time max: 25 s - self-winding mech. not assembled: speed max: 400t/min. time max: 10 s 6.2 With the self winding On Chapuis apparatus 1h3o (Rotation 8 t/min.) On Cyclotest 1’250 turns (Quick rotation 4 t/min.)