Amazon offers the Oct17 Unisex Bamboo Quartz Watch in several colors (Black pictured) for $17.99 with free shipping. That's the lowest price we could find by $2, although we saw it for $1 less in May. It features a bamboo case, wood band, quartz movement, and water resistance (but not for swimming or diving).

Note: Choose GEARONIC INC. from the "Other Sellers on Amazon" box.