Seiko Cal. 6638 - 875

The 6638-875 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-4b48c2429fde]

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1972

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