Seiko Cal. 6691 - 264

This Hand-Winding model from 1991 features a 35mm Two-Tone case. Powered by the 6691 caliber with 22j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-b30a2cd258b0]

Also known as: Sumo, Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1991

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