Seiko Cal. 5656 - 686

The Seiko 5656-686 represents an important milestone in Seiko's 1978 lineup. Powered by the 5656 caliber with 34j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-cd52011e82cc]

Also known as: Monster, Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

42mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1978

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