Seiko Cal. 6178 - 221

This Solar model from 1969 features a 43mm PVD Black case. Powered by the 6178 caliber with 21j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-269c3d78dcf5]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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