Seiko Cal. 5660 - 181

The Seiko 5660-181 represents an important milestone in Seiko's 1974 lineup. Powered by the 5660 caliber with 26j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-f02424b78083]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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