Model : 18K Plated RG Case and Buckle, Texturised Salmon dial, on Leather strap with Insignia Buckle Movement: Swiss Quartz (Lunar Calender) Movement Functions: Hours, Minutes, Secs, Day, Date, Month , Day- Sun Moon Phase Day : Set at 8.00 recessed pusher Date : Set at 4.00 recessed pusher Month : Set at 2.00 recess pusher Day, Date will advance with time.. Month will advance on the 31st of every month.. Months without 31st ... needs manual switch overDimensions : Dia 38mm x 8.5mmThk Material : 1 piece forged case construction, solid 316 stainless steel, 18K Thick RG plating ... 3 mils Back : Solid Case back, Detail engraving Crown : One-piece pull out crown Crystal: Sapphire Crystal Water-resistant