Seiko Cal. 4551 - 950

The Seiko 4551-950 represents an important milestone in Seiko's 1971 lineup. Powered by the 4551 caliber with 23j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-fa8480ed6c1f]

Also known as: Silverwave, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1971

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