Seiko Cal. 6631 - 401

This Hand-Winding model from 1998 features a 46mm Gold-Plated case. With its 21mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-e2104944e7f0]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1998

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