Seiko Cal. 6642 - 924

The Seiko 6642-924 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-d58ffc0b416a]

Also known as: Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1967

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