Seiko Cal. 6391 - 961

The Seiko 6391-961 represents an important milestone in Seiko's 1971 lineup. Powered by the 6391 caliber with 29j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-c03352e969ed]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1971

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