Seiko Cal. 6631 - 254

The 6631-254 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-dfe6ef2e85e6]

Specifications

Movement

Solar

Case Material

Titanium

Case Width

35mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1984

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