Product Overview
The SEIKO 5 Sports Automatic Blue Dial Stainless Steel 100M Men’s Watch SRP677 is a reliable and stylish timepiece built for everyday wear and active lifestyles. Designed for men who value both function and form, this watch features a bold blue dial housed in a durable stainless steel case with a see-through case back that showcases the automatic movement. With a 46mm case diameter and a 22mm band width, it offers a substantial presence on the wrist while maintaining comfort and balance. As part of the renowned Seiko 5 Sports series, this model combines practicality with a sporty aesthetic, making it ideal for casual, work, or weekend use. Its automatic movement eliminates the need for battery changes, relying instead on the natural motion of the wearer to keep time accurately.
Key Features
- Automatic Movement: Powered by Seiko’s self-winding mechanical movement, this watch harnesses energy from the wearer’s wrist motion to keep running—no batteries required. Ideal for daily wear, it ensures consistent performance and longevity with minimal maintenance.
- Vibrant Blue Dial: The rich blue dial adds a dynamic visual appeal, enhancing readability with clear hour markers and luminous hands that glow in low-light conditions. The color provides a modern, sporty look that stands out in any setting.
- Stainless Steel Construction: Crafted from high-quality stainless steel, both the case and bracelet offer excellent resistance to corrosion and daily wear. The polished and brushed finishes create a refined yet rugged appearance suitable for various occasions.
- See-Through Case Back: A transparent case back reveals the intricate inner workings of the automatic movement, offering a glimpse into the craftsmanship and engineering that define Seiko’s reputation for precision.
- 100M Water Resistance: Rated for water resistance up to 100 meters (330 feet), this watch can withstand splashes, rain, and swimming. It is suitable for recreational water activities but not recommended for deep diving or high-impact water sports.
- 22mm Band Width: The standard 22mm lug width ensures compatibility with a wide range of aftermarket straps, allowing for personalization and style flexibility. The included stainless steel bracelet provides a secure, adjustable fit.
Technical Specifications
- Model Number: SRP677
- Department: Men
- Case Diameter: 46mm
- Band Width: 22mm
- Water Resistance: 100 meters (330 feet)
- Movement: Automatic (self-winding mechanical)
- Case Material: Stainless Steel
- Dial Color: Blue
- Case Back: See-through (exhibition)
- Manufacturer: SEIKO
- ASIN: B012BKZ2BS
- Date First Available: July 22, 2015
- Package Dimensions: 5 x 3.4 x 2.7 inches
- Item Weight: 6.4 ounces
- Best Sellers Rank: #2,016,248 in Clothing, Shoes & Jewelry; #7,987 in Men’s Wrist Watches
Benefits & Use Cases
This watch is designed for men who want a dependable, no-fuss timepiece that performs well in daily life. The automatic movement makes it perfect for regular wearers who appreciate mechanical watches and want to avoid the hassle of battery replacements. Its 100M water resistance allows for worry-free use during handwashing, rain exposure, or swimming at the pool or beach. The 46mm case size gives it a confident, modern presence on the wrist, suitable for medium to large wrists. Whether worn with a casual outfit, business-casual attire, or during outdoor activities, the SRP677 delivers both style and function. The stainless steel build ensures it can handle the bumps and scratches of everyday life, while the blue dial adds a touch of personality without being overly flashy.
Important Notes
While the watch is water-resistant to 100 meters, it is not designed for scuba diving or prolonged submersion under pressure. Avoid pressing buttons or operating the crown while in water to maintain water resistance integrity. The stainless steel bracelet may require occasional cleaning to preserve its shine and prevent buildup. As an automatic watch, it may require manual winding if left unworn for extended periods—typically 24–48 hours of inactivity may stop the movement. Regular servicing every 3–5 years is recommended to ensure optimal performance. The product is shipped in its original packaging, which includes a protective case and may include warranty documentation from Seiko. Please verify authenticity upon receipt, especially when purchasing from third-party sellers.

