Seiko Cal. 3878 - 702

The Seiko 3878-702 represents an important milestone in Seiko's 1997 lineup. With its 20mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-572bc1949f8f]

Also known as: Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1997

Related Models

• Seiko 7165-297
• Seiko 6165-378
• Seiko 3847-980
• Seiko 7157-128
• Seiko 5670-152
• Seiko 5640-444
• Seiko 6267-560
• Seiko 6228-824
• Seiko 4474-481
• Seiko 7117-287
• Seiko 4589-914
• Seiko 7178-637