⌚ Upgrade Your Style, Elevate Your Time! Designed specifically for Seiko MarineMaster models for a perfect match. Simply attach using your original buckle for a hassle-free upgrade. Lightweight design ensures all-day comfort without compromising on aesthetics. Crafted from pure vulcanized rubber, resistant to oils and acids. Transform your Seiko MM300 with a sleek, stylish band. Curved End Design Vulcanized Rubber Strength 20mm Lug Width The CRAFTER BLUE Curved End Watch Band is a premium rubber strap replacement designed for various Seiko MM300 MarineMaster models. With a 20mm lug width and crafted from durable vulcanized rubber, this band offers superior strength and resistance to oils and acids. Its overall length of 145mm and thickness of 4.5mm to 3.5mm ensure a comfortable fit, making it the perfect accessory for any watch enthusiast.