Seiko Cal. 6639 - 115

This Quartz model from 1965 features a 41mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-cd0aee20fc52]

Also known as: Goldfeather, World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1965

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