Seiko Cal. 5615 - 840

This Solar model from 1981 features a 36mm Stainless Steel case. Powered by the 5615 caliber with 28j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-e6554e256e66]

Also known as: Shogun, Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1981

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