Seiko Cal. 6661 - 816

The Seiko 6661-816 represents an important milestone in Seiko's 1965 lineup. With its 20mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-649002fa15cb]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

29j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1965

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