Seiko Cal. 4478 - 669

The Seiko 4478-669 represents an important milestone in Seiko's 1972 lineup. Powered by the 4478 caliber with 28j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-bdbf2cfd58c1]

Also known as: World Timer, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1972

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