Seiko Cal. 6661 - 626

Released in 1976, the Cal. 6661 with design code 626 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-b77df26970ac]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1976

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