Seiko Cal. 6649 - 627

This Spring Drive model from 1979 features a 37mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-04652ca11ad6]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1979

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