I couldn't stand the legibility issue with GW-9400-1B (even on broad broad daylight!). Bought a positive display version GW-9400-1 yesterday. I'm happier now! Here's a picture of them next to each other
G-Shock GW-9400 / 3410 / Triple Sensor with its own Audible Tone
ملف:Casio G-Shock Master of G Rangeman GW-9400J-1JF.jpg - ويكيبيديا
casio Wristwatch G-SHOCK GW-9400 Rangeman Blue round face mens sports watch boy | eBay
Casio G-Shock Men's Digital Watch GW-9400-1DR – The Watch House
Casio G-Shock Rangeman Tough Solar Multi-Band Atomic GW-9400-3 Mens Watch Singapore