Seiko Cal. 6638 - 935

The 6638-935 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6638 caliber with 17j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-d188f4cc83e8]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Burgundy

Jewels

17j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1997

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