Seiko Cal. 5290 - 921

This Hand-Winding model from 1978 features a 44mm Two-Tone case. Powered by the 5290 caliber with 25j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-d17c191eceff]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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