The Vanguard is built for those who lead from the front. Combining bold sporty design with a refined, luxurious edge, it delivers strength, style, and confidence on the wrist. Clean lines, durable construction, and striking details make it ready for everyday action while maintaining an elevated presence. The Vanguard is a modern statement piece made for ambition, movement, and timeless performance. • SONY 377 SR626SW (1.55V) battery supported, easy to replace, or fix. • Premium SEIKO Quartz Movement: Provides accurate timing for your daily life occasions. • Premium Stainless Steel Case&Bands: High density 304 stainless steel case, electroplated process to get great glossiness and various colors. No allergy.