Seiko Cal. 5646 - 447

The Seiko 5646-447 represents an important milestone in Seiko's 1986 lineup. Powered by the 5646 caliber with 18j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-c242c0017b80]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1986

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