Seiko Cal. 3898 - 671

The Seiko 3898-671 represents an important milestone in Seiko's 1981 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-dc9462b47558]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1981

Related Models

• Seiko 3825-243
• Seiko 6636-383
• Seiko 4581-777
• Seiko 4531-125
• Seiko 0737-139
• Seiko 6357-779
• Seiko 4489-291
• Seiko 7149-870
• Seiko 5687-683
• Seiko 6619-738
• Seiko 7078-512
• Seiko 7139-265