Seiko Cal. 3815 - 826

This Spring Drive model from 1973 features a 42mm Gold-Plated case. Powered by the 3815 caliber with 20j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-b8d35da6be4a]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1973

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