Seiko Cal. 6631 - 256

This Quartz model from 1972 features a 36mm Stainless Steel case. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-37ac256744be]

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1972

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