Seiko Cal. 6639 - 413

This Automatic model from 1965 features a 37mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-50c0a8d846f5]

Also known as: Goldfeather

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

36j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1965

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