Seiko Cal. 5649 - 840

This Spring Drive model from 1972 features a 36mm Hardlex-Coated Steel case. Powered by the 5649 caliber with 21j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-65abaaad0ae6]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1972

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