Seiko Cal. 3871 - 666

The Seiko 3871-666 represents an important milestone in Seiko's 1990 lineup. With its 22mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-c46a38bd7aad]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1990

Related Models

• Seiko 6353-814
• Seiko 6124-534
• Seiko 0759-564
• Seiko 0721-582
• Seiko 6310-140
• Seiko 6186-784
• Seiko 6342-547
• Seiko 6163-360
• Seiko 3888-448
• Seiko 4490-333
• Seiko 6394-613
• Seiko 7148-405