Casio G-Shock GMWB5000PS1ER 40th Anniversary Limited-Edition Timepiece.

The Casio GMWB5000PS-1ER is a special 40th Anniversary full-metal G-Shock with a tough solar-powered movement and shock-resistant design. It pairs Bluetooth smartphone connectivity with radio time syncing and offers world time, stopwatch, countdown timer, and 5 alarms with Super Illuminator LED backlight. With 200 m water resistance and durable recrystallized steel construction, it’s built for reliable everyday and outdoor use.

Specifications
Case size : 49.3 × 43.2 × 13 mm
Weight : 167 g
Case and bezel material : Stainless steel
Band : Solid Band, Stainless Steel Band, One-touch 3-fold Clasp
Construction : Shock Resistant
Water resistance : 200-metre water resistance
Time adjustment : Radio-controlled Watch; Multi band 6, Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life : Tough Solar (Solar powered)
Smartphone Link feature : Mobile link (Wireless linking using Bluetooth)
Apps : CASIO WATCHES
Glass : Mineral Glass
Back plate : Screw Lock Back
Surface treatment : Deep Layer Hardening + TIC
Compatible band size : 150 to 205 mm
Light colour : LED: White
Calendar : Full auto-calendar (to year 2099)
Mute feature : Button operation tone on/off
Energy saving feature : Power Saving (display goes blank to save power when the watch is left in the dark)
Battery display/alert : Low battery alert
Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)