Seiko Cal. 5664 - 216

This Hand-Winding model from 1978 features a 43mm Two-Tone case. Powered by the 5664 caliber with 34j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-5046313ec8f8]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1978

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