Seiko Cal. 6691 - 115

The Seiko 6691-115 represents an important milestone in Seiko's 1967 lineup. With its 21mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-06216ddc4407]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1967

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