2.5mm Stainless Steel Fat Spring Bar (2.5mm x 20~22mm)
This 2.5mm stainless steel fat spring bar is built for heavy-duty watch applications, especially ideal for Seiko modding projects and diver watch upgrades. With a robust 2.5mm diameter and available in 20mm and 22mm lengths, it’s perfect for securely attaching straps to large cases like those found on Seiko SKX, Turtle, and other tool watches.
Manufactured from solid 316L stainless steel, this spring bar provides exceptional strength, corrosion resistance, and long-term durability under pressure. Whether you’re a modder or professional watchmaker, this is a must-have component for reinforcing your build and ensuring the strap stays firmly in place—even in demanding environments.
Key Features:
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Ideal for Seiko mods, especially SKX and Turtle series
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Thick 2.5mm diameter for added strength
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Length options: 20mm and 22mm
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Made from corrosion-resistant 316L stainless steel
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Compatible with diver watches, rubber straps, and NATO setups
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Secure fitment for tool watches and field builds