Seiko Cal. 6615 - 997

The Seiko 6615-997 represents an important milestone in Seiko's 1975 lineup. Powered by the 6615 caliber with 18j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-ab6eff7f5bf0]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1975

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