Seiko Cal. 6158 - 901

The Seiko 6158-901 represents an important milestone in Seiko's 1978 lineup. Powered by the 6158 caliber with 22j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-d00babf8bc41]

Also known as: Helmet, Bellmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

22j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1978

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