Seiko Cal. 6391 - 968

This Hand-Winding model from 1976 features a 46mm Two-Tone case. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-29b3a2ca9db5]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

32j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

Related Models

• Seiko 6639-898
• Seiko 6381-187
• Seiko 4528-468
• Seiko 5242-776
• Seiko 4526-568
• Seiko 5285-464
• Seiko 0764-241
• Seiko 7077-120
• Seiko 7029-810
• Seiko 7061-612
• Seiko 6267-800
• Seiko 6131-718