Seiko Cal. 4430 - 570

The 4430-570 is a sought-after Solar piece from Seiko's golden era. Powered by the 4430 caliber with 26j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-b842d38451d4]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1989

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