Seiko Cal. 3861 - 581

The Seiko 3861-581 represents an important milestone in Seiko's 1976 lineup. Powered by the 3861 caliber with 29j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-d5677b45b4ab]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1976

Related Models

• Seiko 7177-271
• Seiko 5294-209
• Seiko 6384-571
• Seiko 6663-280
• Seiko 6266-915
• Seiko 6672-391
• Seiko 4576-929
• Seiko 0756-923
• Seiko 4513-603
• Seiko 3892-226
• Seiko 4453-326
• Seiko 4450-779