Heavy Duty Spring Bars for Seiko SKX and similar

We’ve focused only on the best quality Marine Grade Steel Watch Spring Bars. Here we have a range of Seiko compatible “Fatboy” / Heavy Duty Spring Bars compatible with many Seiko SKX dive watches.

Heavy Duty “Fatboy” style Spring Bars

We sell replacement spring bars suitable for the Seiko SKX009 and Seiko SKX007. A high quality marine grade stainless steel pin made to the same dimensions as the original Seiko C220FS part. They fit a majority of Seiko Dive Watches with a larger 1.1 mm lug hole (most watches are normally 0.8 mm). They also fit several popular models but please check LUG to LUG width (we sell 20 mm & 22 mm). Please click the button below to visit our eBay store. All items despatched from the UK. UK delivery only.

Technical Specification

The main dimensions of the FAT Seiko SKX009 / SKX007 spring bar have been reproduced precisely as below:

  • High Quality Marine Grade Stainless Steel (rust proof)
  • Primary diameter = 2.5 mm
  • Width when 95% compressed = 20 mm or 22 mm
  • Pip diameter (the end that locates in lugs) = 1.1 mm
2.5mm diameter spring bar for Seiko dive watches - FatBoy Spring Bars
2.5mm diameter Spring Bars
Important - spring bars have a 1.1mm pip (pivot) to fit lugs tightly
IMPORTANT – 1.1mm Pip diameter to fit Seiko SKX lugs

If you found this page via a search engine – please pop over to our generic Seiko Dive Watch information page for more information or here – for our collection of Seiko Dive watches for sale