Seiko Cal. 6641 - 640

This Automatic model from 1970 features a 39mm Gold-Plated case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-2fcb7a9ea5dd]

Also known as: Panda, World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1970

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