Power Reserve: 41 hours
Dial Feet: 3 / 3
Lume : Swiss C3 SuperLuminova
Read: Difference between SRPD and SKX Caseback Gaskets
Caseback : 316L Stainless steel solid caseback
Seiko Mod Lumed Chapter Ring for SKX007/SRPD: Polished Black Stainless Steel Case Power Reserve: 41 hoursSKX SRPD Chapter Ring: Polished Black Stainless Steel with Luminous Markers Chapter Ring Dimension: 30. 5 x 27. 5mm Chapter Ring Height: 2. 25mm This Chapter Ring is compatible with: Seiko SKX Series : SKX007, SKX009, SKX011, SKX171, SKX173, SKX175) Seiko 5 SRPD Sport Style: SRPD55K1, SRPD55K3, SRPD57K1, SRPD59K1, SRPD61K1, SRPD63K1, SRPD65K1, SRPD65K4 Seiko 5 SRPD Specialist Style: SRPD55K2, SRPD65K3, SRPD76K1 Seiko 5 SRPD Street Style: SRPD79K1,