Seiko Cal. 6391 - 239

The Seiko 6391-239 represents an important milestone in Seiko's 1984 lineup. Powered by the 6391 caliber with 20j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-84ef6cb82e69]

Also known as: Tuna, Goldfeather

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1984

Related Models

• Seiko 4471-329
• Seiko 4491-269
• Seiko 6195-756
• Seiko 0762-992
• Seiko 5291-608
• Seiko 7077-802
• Seiko 3858-264
• Seiko 5214-309
• Seiko 5244-543
• Seiko 3874-200
• Seiko 6620-656
• Seiko 4454-590