Seiko Cal. 4417 - 643

The Seiko 4417-643 represents an important milestone in Seiko's 1980 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-213ca174c3eb]

Also known as: Navigator, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1980

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