Seiko Cal. 6631 - 391

Seiko 6631-391

This Kinetic model from 1989 features a 38mm Two-Tone case. With its 21mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-fda38d1c19aa]

Also known as: Sportsmatic

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
38mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1989

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