Seiko Cal. 6647 - 100

The 6647-100 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-6cf49583bcd3]

Also known as: Crown

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1977

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