Seiko Cal. 6391 - 475

The 6391-475 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6391 caliber with 20j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-2efb79fbec9f]

Also known as: Turtle, Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1969

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