Seiko Cal. 6661 - 845

The Seiko 6661-845 represents an important milestone in Seiko's 1967 lineup. With its 20mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-8ae991fe27db]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1967

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