Seiko Cal. 6661 - 722

Released in 1965, the Cal. 6661 with design code 722 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-93765917eb62]

Also known as: World Timer, Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1965

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