Brand Name: HEIMDALLR Water Resistance Depth: 20Bar Origin: CN(Origin) Clasp Type: Buckle Style: SPORT Sport Type: Diving Movement: Mechanical Hand Wind Movement: Automatic Self-Wind Band Length: 20cm Case Material: Stainless steel Feature: Luminous Feature: Auto Date Feature: Complete Calendar Feature: Diver Feature: Water Resistant Feature: Swim Feature: luminous hands Case Shape: Round Dial Window Material Type: Sapphire Crystal Boxes & Cases Material: Paper Item Type: Mechanical Wristwatches Band Material Type: Leather Band Length: 20cm Model Number: HMSA-21 Band Width: 22mm Case Thickness: 137mm Dial Diameter: 45.5mm Lug to Lug Length: 50mm Luminous: Japan Super Green C3 Luminous Crown Material: 316L Stainless Steel Weight: 100.4g Water Resistant: 200m Bezel: Unidirect rotatable bezel (360 degrees) Bezel Insert: Ceramic bezel insert with lume pip Crystal: Sapphire glass with AR-Coating Movement: NH35A Automatic Movement Strap: leather strap with quick release spring bar Clasp: Pin Buckle Dial: Black/Red/Snowflake/Frost Dial Crown: Screw-Down