Seiko Cal. 6631 - 743

Seiko 6631-743

The Seiko 6631-743 represents an important milestone in Seiko's 1994 lineup. With its 22mm lug width and 14.0mm profile, it sits comfortably on most wrists. [seikata-wm-0e40345fddba]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
14.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Cream
Jewels
36j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1994

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