Seiko Cal. 4430 - 242

The 4430-242 is a sought-after Solar piece from Seiko's golden era. Powered by the 4430 caliber with 30j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-4c32870367c5]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1985

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