Seiko Cal. 6691 - 261

The Seiko 6691-261 represents an important milestone in Seiko's 1966 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-cad727020b6d]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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