Seiko Cal. 6657 - 788

The 6657-788 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-03a0933bb26e]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1985

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