Seiko Cal. 6631 - 190

The 6631-190 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1fd244d9a6ac]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1984

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