Seiko Cal. 5666 - 171

The Seiko 5666-171 represents an important milestone in Seiko's 1970 lineup. Powered by the 5666 caliber with 26j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-b3bbc9197ce7]

Also known as: UFO, Goldfeather

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1970

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