Seiko Cal. 6631 - 783

The Seiko 6631-783 represents an important milestone in Seiko's 1998 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-2517d431eefe]

Also known as: Shogun, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1998

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