Seiko Cal. 6631 - 986

The 6631-986 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fec1411660ee]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

24j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1968

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