40mm Daytona VSF 4131 Diamond Bar D.

Material: 904 stainless steel

Dandong 4131 movement（Transparent back cover.）

（70 hours of power storage, two-way rotary energy storage.）

Amplitude: 28800/hour

Within + -5 seconds of daily error

Chronograph function

Sapphire glass

Unweighted version（V1）：140g

Weight gain version（V2）:   164g