Seiko Cal. 5690 - 198

This Spring Drive model from 1966 features a 39mm Two-Tone case. Powered by the 5690 caliber with 25j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-979a61f819f5]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1966

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