Seiko Cal. 4430 - 242

The Seiko 4430-242 represents an important milestone in Seiko's 1979 lineup. Powered by the 4430 caliber with 19j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-31c25ae4f88a]

Also known as: Samurai, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

19j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1979

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