Tank Must watch, large model, quartz movement. Steel case, beaded crown set with a synthetic cabochon-shaped spinel, blue lacquered dial, polished steel sword-shaped hands, blue leather strap, steel ardillon buckle. Case dimensions: 33.7 mm x 25.5 mm, thickness: 6.6 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).