Seiko Cal. 6691 - 236

The Seiko 6691-236 represents an important milestone in Seiko's 1994 lineup. Powered by the 6691 caliber with 22j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-3cd61b0a0500]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1994

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