Seiko Cal. 6691 - 766

The 6691-766 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-9b37a4e6ab3e]

Also known as: Samurai, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1975

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