Seiko Cal. 3815 - 157

The Seiko 3815-157 represents an important milestone in Seiko's 1973 lineup. Powered by the 3815 caliber with 34j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-761feaafdf98]

Also known as: Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1973

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