Seiko Cal. 3879 - 712

The Seiko 3879-712 represents an important milestone in Seiko's 1968 lineup. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-f87c4d9cf602]

Also known as: Helmet, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1968

Related Models

• Seiko 4463-280
• Seiko 3841-863
• Seiko 4537-773
• Seiko 7194-346
• Seiko 7110-605
• Seiko 4587-100
• Seiko 6120-824
• Seiko 7063-980
• Seiko 6346-190
• Seiko 6281-770
• Seiko 6367-497
• Seiko 5655-858