Seiko Cal. 6661 - 516

The Seiko 6661-516 represents an important milestone in Seiko's 1971 lineup. Powered by the 6661 caliber with 20j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-2a73f1b1140b]

Also known as: Navigator

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1971

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