Seiko Cal. 6397 - 747

The 6397-747 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6397 caliber with 33j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-b0dacfa34299]

Also known as: Bullhead, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1971

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