SKX Caseback Gasket – SKX007 SKX013 SRP Turtle + More – CT406
Price range: $9.00 through $30.00
- Description – Case back gasket – oem spec
- Finish – Black
- Type/Design – Water resistant case back gasket – Tested during development to 300M
- Suitable for 200M – SKX007 SKX009 SKX011 SKX013 SKX171 SKX173 SKX175 SKX401K SKXA35 – CT Crystals ref CT025 CT037 CT037CIS CT037F CT094 CT124 CT099
- Suitable for 200M – New Prospex “Turtle” 200M SRP773 SRP775 SRP777 SRP779 SRP787 SRP789 SRPC44 SRPC23K1 SRPC25K1 SRPC49K1 “PADI” Versions – SRPA21 SUN065 – Blue Lagoon SRPB09 SRPB11 – CT Crystals ref CT057 CT072 CT075 CT076 CT096
- Suitable for Samurai: SRPB09 SRPB49 SRPB51 SRPB53 SRPB55 SRPB99 SRPC93 SRPD03
- Additional info – Excellent quality replacement case back gasket. Tested during development to 300M
Description
A caseback gasket is a wear item, not a forever part. If your SKX caseback hasn’t been opened in a decade, the seal inside has flattened and dried out — and at that point the 200M water resistance printed on the caseback is only a rumor.
This is the OEM-spec replacement: a black rubber caseback gasket with a water-resistant design, tested to 300M during development. Excellent-quality replacement stock, sold as a single gasket or a 5-pack that saves you $3 — worth it if you service more than one watch a year.
Fitment: Seiko 200M SKX007, SKX009, SKX011, SKX013, SKX171, SKX173, SKX175, SKX401K, SKXA35; new Prospex Turtles SRP773, SRP775, SRP777, SRP779, SRP787, SRP789, SRPC44, SRPC23K1, SRPC25K1, SRPC49K1, PADI versions SRPA21, SUN065, and Blue Lagoon SRPB09, SRPB11; and Samurai models SRPB09, SRPB49, SRPB51, SRPB53, SRPB55, SRPB99, SRPC93, SRPD03.
Lightly grease the gasket on installation and keep a spare in the parts box — a fresh seal costs next to nothing compared to a fogged dial.



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