ETA Caliber 1240 Watch movement spare parts
| ETA Caliber 1240 – Part No – 100 Main Plate |
| ETA Caliber 1240 – Part No – 105 Barrel Bridge |
| ETA Caliber 1240 – Part No – 110 Train Wheel Bridge |
| ETA Caliber 1240 – Part No – 121 Balance cock for flat hairspring |
| ETA Caliber 1240 – Part No – 125 Pallet cock |
| ETA Caliber 1240 – Part No – 182 Barrel and cover |
| ETA Caliber 1240 – Part No – 195 Barrel Arbor |
| ETA Caliber 1240 – Part No – 201 Center wheel |
| ETA Caliber 1240 – Part No – 210 Third Wheel |
| ETA Caliber 1240 – Part No – 220 Fourth wheel |
| ETA Caliber 1240 – Part No – 230 Escape wheel pinton |
| ETA Caliber 1240 – Part No – 240 Cannon Pinion |
| ETA Caliber 1240 – Part No – 250 Hour Wheel |
| ETA Caliber 1240 – Part No – 260 Minute Wheel |
| ETA Caliber 1240 – Part No – 301 Regulator for flat hairspring |
| ETA Caliber 1240 – Part No – 311 Upper cap jewel with end-piece, for balance |
| ETA Caliber 1240 – Part No – 330 Lower cap jewel with end-piece, for balance |
| ETA Caliber 1240 – Part No – 401 Winding Stem |
| ETA Caliber 1240 – Part No – 407 Clutch wheel |
| ETA Caliber 1240 – Part No – 410 Winding Pinion |
| ETA Caliber 1240 – Part No – 415 Ratchet Wheel |
| ETA Caliber 1240 – Part No – 420 Crown Wheel |
| ETA Caliber 1240 – Part No – 423 Crown Wheel ring |
| ETA Caliber 1240 – Part No – 425 Click |
| ETA Caliber 1240 – Part No – 430 Click Spring |
| ETA Caliber 1240 – Part No – 435 Yoke |
| ETA Caliber 1240 – Part No – 440 Yoke Spring |
| ETA Caliber 1240 – Part No – 443 Setting lever |
| ETA Caliber 1240 – Part No – 445 Setting lever Spring |
| ETA Caliber 1240 – Part No – 450 Setting Wheel |
| ETA Caliber 1240 – Part No – 702 Escape wheel and pinion, for two end-pieces |
| ETA Caliber 1240 – Part No – 704 Escape wheel and pinion, for upper end-piece |
| ETA Caliber 1240 – Part No – 705 Escape wheel and pinion with straight pivots |
| ETA Caliber 1240 – Part No – 710 Jewelled Pallet fork and staff |
| ETA Caliber 1240 – Part No – 714 Pallet stalf |
| ETA Caliber 1240 – Part No – 720 Balance with roller, pivoted |
| ETA Caliber 1240 – Part No – 721 Balance with flat hairspring, regulaled |
| ETA Caliber 1240 – Part No – 723 Balance staff, pivoted |
| ETA Caliber 1240 – Part No – 730 Roller |
| ETA Caliber 1240 – Part No – 770 Mainspring |
| ETA Caliber 1240 – Part No – 5105 Bridgs screw |
| ETA Caliber 1240 – Part No – 5110 Bridgs screw |
| ETA Caliber 1240 – Part No – 5121 Bridgs screw |
| ETA Caliber 1240 – Part No – 5125 Pallet cock screw |
| ETA Caliber 1240 – Part No – 5311 Upper end-piece screw, for balance |
| ETA Caliber 1240 – Part No – 5330 Lower end-piece screw, for balance |
| ETA Caliber 1240 – Part No – 5336 Lower end-piece screw, for escape wheel |
| ETA Caliber 1240 – Part No – 5346 Lower end-piece screw, for escape wheel |
| ETA Caliber 1240 – Part No – 5415 Lower end-piece screw, for balance |
| ETA Caliber 1240 – Part No – 5420 Crown wheel screw |
| ETA Caliber 1240 – Part No – 5425 Click screw |
| ETA Caliber 1240 – Part No – 5443 Setting lever screw |
| ETA Caliber 1240 – Part No – 5445 Screw for setting lever spring |
| ETA Caliber 1240 – Part No – 5738 Hairspring stud screw |
| ETA Caliber 1240 – Part No – 5750 Dial screw, short |
| ETA Caliber 1240 – Part No – 5750 Dial scrsw long |
The ETA 1240 is a compact manual-wind pin lever (Roskopf-type) movement designed for ladies’ watches, prized by collectors for its simplicity and reliability in vintage timepieces. Produced by ETA SA, it exemplifies early 20th-century Swiss engineering with a focus on affordability and precision.
Key Specifications
Size: 7 x 8”’ lignes, ideal for slim cases.
Jewels: Typically 15, reducing friction in critical pivots.
Escapement: Pin lever mechanism for cost-effective timekeeping.
Functions: Hours, minutes; manual winding via rocking bar setter.
Design Highlights
The ETA 1240 employs a two-story construction in some variants, driving center seconds directly for visual appeal and smooth operation. [jewels] Its nickel screw balance often features Monorex shock protection, enhancing durability despite its vintage origins. [jewels] Parts like the barrel arbor (Ref. 195/153) and mainspring (1.60 x 0.095 x 240 x 7.5 mm) remain available for restoration.
Historical Context
Introduced in the mid-20th century, the ETA 1240 powered affordable Swiss ladies’ watches during ETA’s expansion under ASUAG. Similar to A. Schild’s AS 1240 (17 jewels, 18,000 vph, 36-42 hour power reserve), it shares a 52° lift angle for reliable amplitude. Today, enthusiasts source spares from suppliers like EmmyWatch for reviving classics.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340