SEIKO ESSENTIALS SSB321

SEIKO SSB321 Quartz Chronograph – 43.9mm Blue Dial Watch

The SEIKO SSB321 is a sporty men’s quartz chronograph from the Essentials Collection, featuring a 43.9mm stainless steel case, patterned blue dial, and blue tachymeter bezel. It is powered by Seiko’s reliable Caliber 8T67 quartz movement.

With three chronograph subdials, a date display, LumiBrite hands, and 100-meter water resistance, the SSB321 combines bold styling with practical everyday functionality.

Design Overview

The SEIKO SSB321 pairs its patterned blue dial with yellow accents and a blue ion-finish tachymeter bezel for a distinctive sporty look. A stainless steel bracelet completes the design, while the case measures 12.85mm thick.

Key Features

• SEIKO SSB321 men’s quartz chronograph
• Essentials Collection
• 43.9mm stainless steel case
• 12.85mm case thickness
• Blue patterned dial with yellow accents
• Blue ion-finish tachymeter bezel
• Quartz chronograph movement – Caliber 8T67
• Chronograph measures up to 12 hours
• 1/5-second chronograph timing
• Three chronograph subdials
• Date calendar
• LumiBrite hands
• Hardlex crystal
• 10 bar / 100 meters / 330 feet water resistance
• Stainless steel bracelet
• 22mm lug width
• Screwdown caseback
• Approx. 3-year battery life

Case & Exterior

• Case Material: Stainless steel
• Dial Color: Blue
• Bezel: Blue ion-finish tachymeter bezel
• Crystal: Hardlex crystal
• Bracelet: Stainless steel bracelet
• LumiBrite: LumiBrite on hands
• Lug Width: 22 mm
• Water Resistance: 10 bar / 100 meters / 330 feet
• Case Back: Screwdown caseback

Case Dimensions

• Diameter: 43.9 mm
• Thickness: 12.85 mm
• Lug Width: 22 mm

Movement & Chronograph Performance

• Movement Type: Quartz Chronograph
• Caliber: 8T67
• Battery Life: Approx. 3 years
• Chronograph Measurement: Up to 12 hours
• Chronograph Resolution: 1/5-second increments

Summary

The SEIKO SSB321 is a sporty 43.9mm men’s quartz chronograph featuring a patterned blue dial, yellow accents, and a blue tachymeter bezel. Powered by Seiko’s Caliber 8T67, it delivers practical chronograph functionality with bold everyday styling.

With its Hardlex crystal, stainless steel bracelet, LumiBrite hands, and 100-meter water resistance, the SSB321 is a practical choice for customers looking for a durable and versatile Seiko chronograph.

For more details, visit the official Seiko website.

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Unfortunately, we DO NOT ship internationally.