Seiko Cal. 5615 - 991

The 5615-991 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5615 caliber with 20j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-ea9fcd4ed9bb]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1987

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