Perfect Fit replacement watch band for CASIO G-Shock:

GA-800 (5535)
GA-810 (5535)

Genuine Resin Band
Stainless Steel Buckle
Color: Black
Fits CASIO:
GA-800
GA-800-1
GA-800-1A
GA-810MMA
GA-810MMA-1
GA-810MMA-1A

Also Fits Series:

GA-800 (5535)
GA-810 (5535)
GA-835 (5535)
GBA-800 (5554)
GBD-800 (3464)

Lug Width/Band Width: 16mm/mm
MPN: 10552597