Seiko Cal. 3840 - 597

This Spring Drive model from 1978 features a 34mm Hardlex-Coated Steel case. Powered by the 3840 caliber with 29j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-ec4276e525b7]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1978

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