Seiko Cal. 5641 - 930

The Seiko 5641-930 represents an important milestone in Seiko's 1966 lineup. It features a Champagne dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-d1b2baed73c2]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1966

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