Seiko Cal. 6631 - 915

The Seiko 6631-915 represents an important milestone in Seiko's 1987 lineup. It features a Cream dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-fa6a2d965d3d]

Also known as: Pogue, Bullhead

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

19j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1987

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