CASE Size : 40 x 40 mm Opening Dial : 31 mm Thickness : 11,70 mm Italian tortoise shell Acetate: handmade polished finish Lugs / Bezel / Crown / screw-down Back: polished 316L stainless steel Crown with embossed BRISTON blazon & black rubber rings Domed mineral crystal - 2.3 mm thickness Water resistance to: 100m/10 ATM MOVEMENT Quartz Citizen caliber: Miyota 2315 Functions: Hours Minutes Seconds & Date Date window positioned at 3 o'clock DIAL Upper plate: light blue with a sunray finishing Under plate: silver white Stamped hour markers & Arabic numerals HANDS Rhodium-plated "baton" Hour & Minutes hands & with whiteSuperluminova® inserts White-coated central hand STRAP Sold with the interchangeable light blue stitched NATO nylon strap: water resistant & washable Special NATO strap with moveable loop Length: 245 mm / width: 20 mmBriston