Seiko Cal. 6649 - 100

This Spring Drive model from 1987 features a 35mm Hardlex-Coated Steel case. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-12f02329e3ce]

Also known as: Shogun, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1987

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