Seiko Cal. 6638 - 170

The 6638-170 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6638 caliber with 30j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-714b620fef52]

Also known as: Shogun, Silverwave

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1967

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