The Zelos Helica 39 Red Opal is an exciting all-round watch that is suitable for nearly any occasion. Zelos is renown for making watches with incredible value for money and impressive specifications. This Helica is no different! Let's start with the basics: It with a 316L stainless steel case and bracelet and its boxed shaped sapphire crystal with AR coating on the inside, great lume, 100m water resistance and a solid bracelet with 20mm diameter at the case (lugs) with an quick adjustment clasp that tapers to 16mm. This bracelet also has a tool free quick adjust. Under the hood is a reliable Made in Japan Miyota 9015 movement with custom date wheel. If those specs haven't swayed you yet, then there's awesome, elegant design. At 39mm diameter (excluding crown) and 11.9mm thickness (10.5mm excluding glass) with a lug to lug distance of 45.5mm, it's suitable for nearly any wrist and extreme comfortable. This beautiful piece features a unique, genuine, Red Opal dial, which adds a stunning dynamic layer to the watch and makes it stand out! Specifications Movement Mechanical Calibre Miyota 9015 Hacking Yes Power reserve 40 hours Hand winding Yes Automatic Yes Glass Sapphire crystal Date Yes Width (without crown) 39mm Thickness 10.5mm (11.9mm with crystal) Lugs 20mm Lug to lug 45.5mm Water resistance 100m Dial Red Opal Bezel type Fixed Bezel material Stainless steel Case material Stainless steel Band material Stainless steel End links Solid Warranty 2 years