Seiko Cal. 3864 - 217

The Seiko 3864-217 represents an important milestone in Seiko's 1982 lineup. Powered by the 3864 caliber with 21j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-c0ac5d2d68fe]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1982

Related Models

• Seiko 6339-620
• Seiko 6185-348
• Seiko 5242-447
• Seiko 6165-685
• Seiko 6620-572
• Seiko 6383-206
• Seiko 6633-868
• Seiko 6656-825
• Seiko 4423-690
• Seiko 0764-853
• Seiko 6133-280
• Seiko 6134-678