NH35 Automatic Movement Cases: Royal Oak 41mm Silver

Cases: Royal Oak 41mm Silver

Sapphire crystal with your choice of blue or clear anti-reflective coating

integrated Royal Oak style Compatibility

Choose between a solid caseback at 9

Movements: Requires a skeleton or open-heart movement — the NH70

NH35 Automatic Movement Cases: Royal Oak 41mm SilverThe Seiko NH35 is the most widely used automatic movement in the Seiko modding community. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH35 delivers reliable automatic timekeeping with a date complication at three oclock, hacking seconds for precise time setting, and hand winding for quick startup after sitting unworn. If you are building your first Seiko mod or replacing a worn movement, the NH35 is the caliber most