Seiko Cal. 6638 - 992

The 6638-992 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-8605d41a7049]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1967

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