Seiko Cal. 3887 - 434

The Seiko 3887-434 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-96382cd5e6d7]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1990

Related Models

• Seiko 4491-791
• Seiko 4533-983
• Seiko 0738-887
• Seiko 3860-890
• Seiko 4432-142
• Seiko 5213-532
• Seiko 6389-617
• Seiko 4419-269
• Seiko 6238-389
• Seiko 5620-522
• Seiko 0727-417
• Seiko 6229-672