Seiko Cal. 6647 - 257

The 6647-257 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-d67001046e8f]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

18j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1977

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