Seiko Cal. 6121 - 643

The Seiko 6121-643 represents an important milestone in Seiko's 1969 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-a2af63e168b5]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1969

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