

ETA Caliber 1121 Watch movement spare parts
| ETA Calibre 1121 – Part No – 100 Main Plate |
| ETA Calibre 1121 – Part No – 105 Barrel Bridge |
| ETA Calibre 1121 – Part No – 110 Train Wheel Bridge |
| ETA Calibre 1121 – Part No – 121 Balance cock for flat hairspring |
| ETA Calibre 1121 – Part No – 125 Pallot cock |
| ETA Calibre 1121 – Part No – 180 Barrel (drum & cover) |
| ETA Calibre 1121 – Part No – 195 Barrel Arbor |
| ETA Calibre 1121 – Part No – 201 Center wheel |
| ETA Calibre 1121 – Part No – 210 Third Wheel |
| ETA Calibre 1121 – Part No – 224 Fourth wheel |
| ETA Calibre 1121 – Part No – 230 Escape wheel pinton |
| ETA Calibre 1121 – Part No – 240 Cannon Pinion |
| ETA Calibre 1121 – Part No – 250 Hour Wheel |
| ETA Calibre 1121 – Part No – 260 Minute Wheel |
| ETA Calibre 1121 – Part No – 301 Regulator for flat hairspring |
| ETA Calibre 1121 – Part No – 311 Upper cap jewel with end-piece |
| ETA Calibre 1121 – Part No – 330 Lower cap jewel with end-piece |
| ETA Calibre 1121 – Part No – 343 Bearing-plate, for sweep-second |
| ETA Calibre 1121 – Part No – 401 Winding Stem |
| ETA Calibre 1121 – Part No – 407 Sliding Pinion |
| ETA Calibre 1121 – Part No – 410 Winding Pinion |
| ETA Calibre 1121 – Part No – 415 Ratchet Wheel |
| ETA Calibre 1121 – Part No – 420 Crown Wheel |
| ETA Calibre 1121 – Part No – 422 Crown Wheel ring |
| ETA Calibre 1121 – Part No – 425 Click |
| ETA Calibre 1121 – Part No – 430 Click Spring |
| ETA Calibre 1121 – Part No – 435 Yoke |
| ETA Calibre 1121 – Part No – 440 Yoke Spring |
| ETA Calibre 1121 – Part No – 443 Setting lever |
| ETA Calibre 1121 – Part No – 445 Setting lever Spring |
| ETA Calibre 1121 – Part No – 450 Setting Wheel |
| ETA Calibre 1121 – Part No – 451 Minute Setting Wheel |
| ETA Calibre 1121 – Part No – 601 Center wheel jewel, upper |
| ETA Calibre 1121 – Part No – 605 Third wheel jewel, upper |
| ETA Calibre 1121 – Part No – 606 Third wheel jewel, lower |
| ETA Calibre 1121 – Part No – 610 Fourth wheel jewel, upper |
| ETA Calibre 1121 – Part No – 611 Fourth wheell jewel, upper |
| ETA Calibre 1121 – Part No – 615 Escape wheel jewel, upper |
| ETA Calibre 1121 – Part No – 616 Escape wheel jewel, lower |
| ETA Calibre 1121 – Part No – 620 Pallet stall jewel, upper |
| ETA Calibre 1121 – Part No – 621 Pallet staff jewel, lower |
| ETA Calibre 1121 – Part No – 630 Balance jewel |
| ETA Calibre 1121 – Part No – 705 Escape wheel |
| ETA Calibre 1121 – Part No – 710 Jewelled Pallet fork and staff |
| ETA Calibre 1121 – Part No – 714 Pallet stalf |
| ETA Calibre 1121 – Part No – 720 Balance |
| ETA Calibre 1121 – Part No – 721 Balance with flat hairspring, regulaled |
| ETA Calibre 1121 – Part No – 723 Balance staff, pivoted |
| ETA Calibre 1121 – Part No – 730 Roller |
| ETA Calibre 1121 – Part No – 734 Flat hairspring, regulated |
| ETA Calibre 1121 – Part No – 736 Collet |
| ETA Calibre 1121 – Part No – 738 Stud |
| ETA Calibre 1121 – Part No – 770 Mainspring |
| ETA Calibre 1121 – Part No – 5101 Case screw |
| ETA Calibre 1121 – Part No – 5102 Case screw special |
| ETA Calibre 1121 – Part No – 5110 Bridge screw |
| ETA Calibre 1121 – Part No – 5125 Pallet cock screw |
| ETA Calibre 1121 – Part No – 5311 Upper end-piece screw |
| ETA Calibre 1121 – Part No – 5330 Lower end-piece screw |
| ETA Calibre 1121 – Part No – 5415 Ratchet-wheel screw |
| ETA Calibre 1121 – Part No – 5420 Crown-wheel screw |
| ETA Calibre 1121 – Part No – 5425 Click screw |
| ETA Calibre 1121 – Part No – 5443 Setting lever screw |
| ETA Calibre 1121 – Part No – 5445 Setting lever spring screw |
| ETA Calibre 1121 – Part No – 5738 Stud screw |
| ETA Calibre 1121 – Part No – 5750 Dial screw |

The ETA 1121: A Reliable Manual Wind Movement
The ETA 1121 is a compact manual-wind mechanical watch movement produced by ETA SA, renowned for its precision and durability in vintage and mid-range timepieces. Introduced in the mid-20th century, it exemplifies Swiss horological engineering with a Swiss lever escapement and manual winding mechanism.
Key Specifications
Size and Jewels: 11.75 ligne diameter, typically 17 jewels for reduced friction and enhanced longevity.
Functions: Hours, minutes, and small seconds at 6 o’clock; no date complication for simplicity.
Frequency: 21,600 vibrations per hour (3 Hz), balancing power reserve and accuracy.
Power Reserve: Approximately 42-46 hours when fully wound.
Design and Performance
Crafted with Incabloc shock protection, the ETA 1121 resists daily wear, making it ideal for robust vintage watches. Its Geneva-striped bridges and blued screws add aesthetic appeal visible through exhibition casebacks. Accuracy hovers around -10/+20 seconds per day, chronometer-grade in select variants.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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