Compare Yema Navygraf Marine Nationale Quarz with Blue Dial #YEMA-11 Movement: Seiko VH31 quartz Caliber Case: Brushed 316L stainless steel. 39mm x 11mm thick. 47mm lug to lug. Crystal: 2.50 mm K1 mineral crystal Band: 316L stainless steel / Nato strap "Parachute". 19mm. Island Watch Price: $499.00 Was: Sale Price $499.00