【Replacement Case Back Screw Set for SevenFriday Watches – Stainless Steel Screws for S/P/M Series】 – Precision-engineered replacement case back screw set (后盖螺丝/底盖螺丝) designed specifically for SevenFriday watches--1. Compatible with S, P, M, T, and V series models featuring screw-down case backs-. Crafted from high-grade stainless steel – matching the 316L stainless steel construction used in original SevenFriday cases-8. The essential replacement part for restoring secure case closure on your SevenFriday timepiece – whether you‘re replacing lost screws, repairing stripped threads, or completing a full watch restoration-.







Wide Compatibility Across SevenFriday Series – Specifically engineered for SevenFriday models including S1/01, P2B/02, T2/04, T3/05, M-Series, V-Series, and more-. SevenFriday watches feature screw-down case backs secured by either 4 vertical screws or a single screw design depending on the model-. Please confirm your watch model – different series may use different screw configurations.
Premium Stainless Steel Construction – Crafted from high-quality stainless steel – the same material used in original SevenFriday cases-8. Key advantages:
Corrosion-resistant – withstands sweat, moisture, and daily wear-8
Precision-machined – exact fit for SevenFriday‘s case back screw system
Durable – maintains structural integrity through years of use
Aftermarket replacement – new production, not used or salvaged parts
Essential for Watch Restoration & Maintenance – SevenFriday case back screws are critical components that maintain the hermetic seal against moisture and dust ingress-8. Over time, screws can become worn, stripped, corroded, or lost-. Perfect for: Replacing worn or missing original screws – restore secure case closure; Completing battery or movement service – replace screws removed during maintenance; Restoring case back integrity – ensure proper sealing and water resistance-; Keeping a spare set – always have replacements on hand.
Professional-Grade DIY Repair – SevenFriday case backs are secured with precision screws that require careful handling-. Professional installation recommended if you‘re not experienced with watch repair-. Using the correct size screwdriver – typically 1.4mm – is essential to avoid stripping the screw heads-7. These are aftermarket replacement parts, not genuine SevenFriday® parts. However, they are precision-engineered to match the original specifications used on SevenFriday watches.