ETA 2850-434, Click & spring, combined

• ETA original click and click spring combined, New in factory packaging.
  

• Fits cal: 2850, 2851, 2852, 2853, 2858, 2859, 2870, 2871, 2872, 2873, 2878, 2879
  

Versions: 28.800 A/h / 21.600 A/h.

• 2850 / 2851: manual wind.
• 2852 / 2853: manual wind date.
• 2858 / 2859: manual wind, day, date.
• 2870 / 2871: automatic wind.
• 2872 / 2873: automatic wind, date.
• 2878 / 2879: automatic wind, day, date.