Wrist diameter is 6.75".  No extra links.

The Casio Edifice EF105 mens wristwatch is a beautifully crafted piece made from high-grade stainless steel. Emulating the precision of a quartz clock, this watch features the date indicator and an analog display to ensure you keep time with style.  This item is perfect for everyday wear and business settings. With no box or papers and no previous service records, this watch is perfect for the person on the go who is also environmentally conscious. Get a piece of timekeeping history today with this Casio Edifice EF105.