Seiko Cal. 6641 - 527

The Seiko 6641-527 represents an important milestone in Seiko's 1968 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-098c54b189ad]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1968

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