Fat Seiko-style spring bars with a 2.5mm diameter. Unlike the OEM Seiko spring bars, these have shoulders for easier removal. Two stainless steel spring bars (one pair) for 20mm lug watches. These are made to fit 20mm watches, with an actual width that is wider.
Please note: these spring bars have 0.7mm end tips and are intended to be used with watches that use with "normal" spring bars. These do not replace Seiko OEM fat spring bars, which use a larger end tip.