Seiko Cal. 6631 - 733

Seiko 6631-733

This Spring Drive model from 1995 features a 44mm Stainless Steel case. With its 20mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-c13f695d4311]

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
13.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
80m
Dial Color
White
Jewels
36j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1995

Related Models

seikata-wm-c13f695d4311