Seiko Cal. 6397 - 541

The Seiko 6397-541 represents an important milestone in Seiko's 1971 lineup. Powered by the 6397 caliber with 31j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-0bcd66296cc0]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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