Seiko Cal. 4551 - 639

The Seiko 4551-639 represents an important milestone in Seiko's 1966 lineup. Powered by the 4551 caliber with 17j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-24886794c1b0]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1966

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