Factory 900 RF 171 - TORTOISE RX (RF 171 COL. 387) are round eyeglasses made in Japan. They feature tortoise acetate geometric sculpted frame with a distinctive exposed metal ring, custom nose pads, and acetate temples.

Made in Japan
- Color: tortoise
- Material: acetate
- Lens: clear
- Shape: round
- Size: eye 45mm / bridge 23mm / temple 150mm