Seiko Cal. 5669 - 931

The Seiko 5669-931 represents an important milestone in Seiko's 1981 lineup. Powered by the 5669 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-ebdd774c885c]

Also known as: Monster, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1981

Related Models

• Seiko 4499-376
• Seiko 6151-343
• Seiko 6141-135
• Seiko 3853-807
• Seiko 7056-844
• Seiko 5231-747
• Seiko 6626-889
• Seiko 6223-443
• Seiko 4455-828
• Seiko 7113-566
• Seiko 3819-544
• Seiko 6143-701