Seiko Cal. 4478 - 139

The 4478-139 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-fd19e1294f74]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1973

Related Models

• Seiko 6386-587
• Seiko 6214-270
• Seiko 0758-266
• Seiko 7065-743
• Seiko 7197-970
• Seiko 6263-327
• Seiko 7096-850
• Seiko 5289-705
• Seiko 4472-640
• Seiko 7039-525
• Seiko 7034-337
• Seiko 3880-502