Seiko Cal. 6659 - 234

The Seiko 6659-234 represents an important milestone in Seiko's 1971 lineup. Powered by the 6659 caliber with 31j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-ef65d7e4f992]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1971

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