Seiko Cal. 6631 - 159

The 6631-159 is a sought-after Solar piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-911e11743842]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1979

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