Seiko Cal. 6646 - 231

This Quartz model from 1982 features a 37mm PVD Black case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ccafd031b15a]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1982

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