Description 【Distinction between Version 1.0 & Version 2.0 】 ❤ All of materials of Version 2.0 is upgraded from Version 1.0 ❤The band of Version 2.0 is made of stainless steel while version 1.0 is made of silicone rubber. ❤Version 1.0 contains Battery LR44 which is generally available for 1.5 years. Battery SR626SW of Version 2.0 owns larger capacitance and stronger endurance which can engage in 2 years. ❤As applying the tempered glass and ultra thin dial, the curvatures of the glass are highly accurate and appearance of Version 2.0 is more graceful than Version 1.0. 【Version 1.0】 ❀ reloj ❀ Dial diameter: 1.61 inch / 4.1 cm ❀ relojes ❀ Dial thickness: 0.63 inch / 1.6 cm ❀ reloj de mujer ❀ Band width: 0.94 inch / 2.4 cm ❀ automatic watch ❀ Band length: 9.84 inch / 25 cm ❀relojes de hombre ❀ Net weight: 1.48 oz / 42 g 【Version 2.0】 ❀black watch❀ Dial diameter: 1.93 inch / 4.9 cm ❀analog watch❀ Dial thickness: 0.39 inch / 1.0 cm ❀reloj hombre❀ Band width: 0.79 inch / 2.0 cm ❀reloj para hombre❀ Band length: 9.25 inch /23.5 cm ❀black watches for men❀ Net weight: 2.50 oz /71 g 【Notice】 # Keep the mens black watch away from heat sources such as hot water, ovens and saunas. # don't recommend wearing the black watches ( for men ) to bath, swimming, surfing and diving or directly rinsing ( automatic ) watches by tap water. # Please wiping the ( gold ) watch dial by a soft cloth instead of coarse cloth.