Seiko Cal. 5611 - 688

The Seiko 5611-688 represents an important milestone in Seiko's 1970 lineup. Powered by the 5611 caliber with 18j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-1d0d57eb0280]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

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