Seiko Cal. 6638 - 986

This Quartz model from 1977 features a 38mm Two-Tone case. It features a Champagne dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-8f4c506135bb]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1977

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