Ordered the 5610-1 with the older 3159 module, received the 5610U-1CF with the newer 3495 module. I'm not complaining, and I only paid $90 👍 : r/ gshock
Casio Gw-M5630E 3159 Yellow x G-Shock | eBay
Direct from Japan] Casio G-Shock 3159 Gw-M5610Bc | eBay
即納!最大半額!即納!最大半額!G-SHOCK CASIO 3159 JA 電波ソーラー お値引き可 腕時計(デジタル) | purcellcom.com
Casio G-Shock GW-5000-1JF Wrist Watch for Men 3159 JA Japan Vintage | eBay
Casio G Shock GW-S5600-1JF for $278 for sale from a Private Seller on Chrono24