yes - its mono case, movement need to take out from front, hence the tool to open the bezel might not be able to find!
but its service cost is not as expensive as most swiss brand
Actually, the bezel of the SBDX001 can be removed very easily by using a normal pen-knife. The movement can also be removed rather easily with normal watch-opening tools. This is what I remember........
(1) Remove the bezel with a pen-knife.
(2) Once the bezel is removed, you will find the thin circular resistance spring. Actually, it's the same system used in most Seiko divers. The spring can be removed with your fingers.
(3) You will see 2 screw rings surrounding the crystal. The inner ring retains the crystal only. The outer ring retains the inner ring (plus the crystal) to the case much like a sapphire caseback which you normally find. So, if you wish to remove the entire construction, unscrew the outer ring by turning CLOCKWISE.
(4) Once removed, you will now see the exposed dial. The chapter ring and O-ring gasket can be removed using your fingers.
(5) There should be a stem release button at the 16 or 17 minute mark. You can release the crown stem system by pressing onto it.
(6) After that, you can remove the entire movement with care.
(7) The 8L35 is basically an undecorated Grand Seiko Cal.9S55 you find in the older Grand Seikos.
Good luck. Open at your own risks.
