Seiko Cal. 6639 - 787

This Quartz model from 1968 features a 46mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-454c99b05b71]

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1968

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