Seiko Cal. 4490 - 230

The Seiko 4490-230 represents an important milestone in Seiko's 1981 lineup. Powered by the 4490 caliber with 32j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-bf350afa54e2]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

32j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1981

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