Seiko Cal. 6691 - 436

Released in 1999, the Cal. 6691 with design code 436 was part of Seiko's domestic market collection. With its 18mm lug width and 13.4mm profile, it sits comfortably on most wrists. [seikata-wm-7abfa7fb23d1]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1999

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