Seiko Cal. 5651 - 439

The Seiko 5651-439 represents an important milestone in Seiko's 1972 lineup. With its 20mm lug width and 13.2mm profile, it sits comfortably on most wrists. [seikata-wm-68ee821cfb1e]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

Related Models

• Seiko 4558-991
• Seiko 7173-500
• Seiko 4525-280
• Seiko 7045-211
• Seiko 5211-609
• Seiko 6224-712
• Seiko 6295-571
• Seiko 4494-318
• Seiko 7160-393
• Seiko 6119-839
• Seiko 7136-278
• Seiko 4542-630