Seiko Cal. 6615 - 420

The Seiko 6615-420 represents an important milestone in Seiko's 1973 lineup. Powered by the 6615 caliber with 19j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-7dff34d96809]

Also known as: Bullhead, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1973

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