EFV-640D-5A Country of Origin_Swiss battery operating time: 8 months

battery operating time: 8 months on rechargeable battery (operation period with normal use without exposure to light after charge) 19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

the metal bracelet should be worn loosely

The new shock resistant structure marks an important advance of G-SHOCK core technology

Glass Sapphire Glass

Designed with a modern

EFV-640D-5A Country of Origin_Swiss battery operating time: 8 monthsMake a dynamic, bold statement a classic EDIFICE sports chronograph with an octagonal bezel in a solid, strong design. Case size (L W H) 47 44. 3 10. 8 mm Weight 136 g Case and bezel material Stainless steel Band Stainless Steel Band One touch 3 fold Clasp Water resistance 100 meter water resistance Power supply and battery life Approx. battery life: 2 years on SR920SW Exterior Glass Mineral Glass Compatible band size 150 to 205 mm Watch Features