Does this watch receive a time signal in Asia and Europe

I had one in Afghanistan that did not. However I just set it for Kabul time ( one of the features) and it stayed accurate for a 8 month deployment. Not sure about Europe.

"Casio Men's GW7900B-1 why is my background grey with black letters ?" and can I change to black background with grey letters I bought it duty free

Hi,The Casio G-Shock GW-7900B should have on its steel back plate, "GW-7900B" and a box with 3200 (module number).Maybe yours has "GW-7900" and 3193 instead ?Regards,

does this have auto El

Yes it has auto EL, it can be set to manual or auto.

does it has in built battery even though is solar

Yes it has a battery and yes you have to 'and can easily' replace it. It's about 13 bucks here on Amazon. Bought one yesterday. The one in it lasted for about 6 years.

Casio Mens Gw7900b Classic Solar Atomic G Shock Watch

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

⏱️ Own Time Like a Boss with the Solar Atomic G-Shock

STEALTH BLACK STATEMENT - Bold 50mm resin case with sleek negative display—wear confidence that commands attention.
UNSTOPPABLE SOLAR POWER - Harness the sun for endless energy—ditch battery worries forever.
ALL IN ONE TACTICAL DISPLAY - Stopwatch, tide/moon graph, alarms & multi-time zones keep you ahead of every schedule.
ATOMIC PRECISION EVERYWHERE - Syncs time automatically across 48 cities for global professionals on the move.
RUGGED MARINE GRADE DURABILITY - Waterproof to 200m—perfect for serious water sports and daily adventures.

The Casio Men's GW7900B Classic Solar Atomic G-Shock Watch combines cutting-edge solar power with atomic timekeeping for unmatched accuracy across 48 cities. Built tough with a 50mm resin case and 200m water resistance, it’s engineered for professionals who demand reliability in marine activities and beyond. Featuring a multi-functional digital display with stopwatch, tide/moon graph, and alarms, this stealthy black timepiece is both a style icon and a high-performance tool.

Specifications

ASIN	B00309HQPK
Age Range Description	NO
Band Colour	Black
Band Length	9.5 Inches
Band Material Type	Resin
Band Width	1.2
Bands	1
Best Sellers Rank	1,030,885 in Fashion ( See Top 100 in Fashion ) 7,402 in Men's Wrist Watches
Brand Name	G-Shock
Case Diameter	50.0
Case Material Type	Resin
Case Thickness	15.5
Character	Fashion
Clasp Type	Sliding Clasp
Closure Type	Buckle
Crystal	Mineral
Customer Reviews	4.5 out of 5 stars 2,300 Reviews
Dial Color	Black
Display	Digital
Embellishment Feature	Crystal
Face Style	Crosshair
Global Trade Identification Number	00079767435196
Included Components	Casio G-Shock MB-6 GW7900B-1 Atomic Solar Rescue Multi-Band
Item Shape	Round
Item Type Name	Casio G-Shock MB-6 GW7900B-1 Atomic Solar Rescue Multi-Band
Item Weight	71 Grams
Manufacturer	G-Shock
Manufacturer Part Number	GW-7900B-1CR
Model Name	'Atomic Solar Rescue Multi-Band'
Model Number	GW7900B-1
Model Series	G-Shock
Number of Items	1
Number of Packs	1
Pattern	Solid
Power Source	Solar Powered
Series Number	1
Special Features	Atomic Timekeeping, Solar Powered, Water Resistant
Sport Type	marine activity, water sports
Strap Type	Single Piece Strap with Buckle
Style Name	Solar Atomic Rescue GW7900B
Theme	Watch
UPC	076797435196 033586475146 079767435196 961613302496
Warranty Type	Seller
Watch Movement Type	Japanese Quartz
Water Resistance Depth	660 Feet
Water Resistance Level	Waterproof

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