Details Line Fireman Reference NM2098C-P13-BE Movement Automatic Caliber Ball RR1103 Jewels 25 jewels Power Reserve 38 Hours Frequency 28800 A/h Case Material Stainless steel Crystal Anti-reflective Sapphire Thickness 11.3 mm Specs Diameter 40 mm Crown Screw-down crown Dial color Blue Lume components Hands and indices Lume Material 15 H3 Gas tubes Water resistant depth 10 atm Shock resistance 5000 Gs Bracelet Stainless steel Clasp type Foldover clasp Country of Manufacture Switzerland Warranty 4 years Calendar type Day