Seiko Cal. 6391 - 121

The Seiko 6391-121 represents an important milestone in Seiko's 1983 lineup. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-afcdafe1b385]

Also known as: Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1983

Related Models

• Seiko 6148-488
• Seiko 6372-400
• Seiko 7169-123
• Seiko 7152-125
• Seiko 4561-665
• Seiko 5633-772
• Seiko 5286-682
• Seiko 6276-665
• Seiko 4435-671
• Seiko 5638-835
• Seiko 6289-683
• Seiko 4552-767