Model : Polished Stainless Steel Case, White Dial, Printed Black Roman Markers on Leather Strap Insignia Buckle Movement: Asian 2813 Automatic Movement With Calendar Complications, 23J Functions: Hours, Minutes, Seconds, Date : Outter Circumference with Central Needle Indicator (Set via Recess Pusher Day and Month indicator at 12.00 Window (Set Via Recess Pusher) Day/Night Day Phase Subdial at 6,00 Note : Day, Date and Day/Night Phase will advance Automatically with Time.. Month Needs Manual Adjustment Dimensions : Dia 43mm x 15mm Thk Material : 1 piece forged case construction, solid 316 stainless steel Back : Solid Caseback with Detail Engraving Crown : One-piece Pull Out crown with o ring Crystal: Sapphire Crystal Water-resistant