Seiko Cal. 6391 - 197

The Seiko 6391-197 represents an important milestone in Seiko's 1983 lineup. Powered by the 6391 caliber with 35j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-01418be6cc42]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1983

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