Seiko Cal. 5656 - 878

The 5656-878 is a sought-after Solar piece from Seiko's golden era. Powered by the 5656 caliber with 33j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-720dbe7c0bb2]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1989

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