Seiko Cal. 6655 - 631

Released in 1972, the Cal. 6655 with design code 631 was part of Seiko's domestic market collection. It features a Green dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-b2a3d4c17018]

Also known as: Bellmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1972

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