Seiko Cal. 5630 - 851

The Seiko 5630-851 represents an important milestone in Seiko's 1979 lineup. Powered by the 5630 caliber with 26j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-2486bd5c5e54]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1979

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