Seiko Cal. 4430 - 301

This Spring Drive model from 1987 features a 45mm Hardlex-Coated Steel case. Powered by the 4430 caliber with 27j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-6231454975d4]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1987

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