Seiko Cal. 5641 - 807

This Spring Drive model from 1966 features a 35mm Stainless Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-a61df46134fd]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1966

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