Seiko Cal. 6642 - 377

The Seiko 6642-377 represents an important milestone in Seiko's 1968 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-668981c94ed9]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1968

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