Seiko Cal. 3866 - 630

The Seiko 3866-630 represents an important milestone in Seiko's 1979 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-1f5f78b4080e]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

34mm

Case Thickness

9.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1979

Related Models

• Seiko 7190-730
• Seiko 4588-384
• Seiko 4475-867
• Seiko 6212-210
• Seiko 4538-588
• Seiko 6387-513
• Seiko 3840-844
• Seiko 7014-470
• Seiko 4471-108
• Seiko 6387-570
• Seiko 4538-768
• Seiko 4445-826