Seiko Cal. 3815 - 610

This Spring Drive model from 1978 features a 41mm Hardlex-Coated Steel case. Powered by the 3815 caliber with 25j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-7f87d3d74fc2]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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