Seiko Cal. 6311 - 521

The Seiko 6311-521 represents an important milestone in Seiko's 1992 lineup. With its 18mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-2cc5ebdb82a7]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1992

Related Models

• Seiko 7138-909
• Seiko 3865-551
• Seiko 7148-991
• Seiko 6219-831
• Seiko 6621-816
• Seiko 6684-910
• Seiko 6327-789
• Seiko 6650-893
• Seiko 7186-772
• Seiko 6639-757
• Seiko 7127-300
• Seiko 4424-961