Seiko Cal. 3891 - 389

The Seiko 3891-389 represents an important milestone in Seiko's 1986 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-ad01054dffa9]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

17j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1986

Related Models

• Seiko 0775-713
• Seiko 7093-900
• Seiko 6670-207
• Seiko 6684-695
• Seiko 7130-505
• Seiko 5630-470
• Seiko 6139-146
• Seiko 6125-347
• Seiko 6146-134
• Seiko 0711-841
• Seiko 6269-247
• Seiko 4412-691