Seiko Cal. 6643 - 940

Seiko 6643-940

This Hand-Winding model from 1986 features a 38mm Stainless Steel case. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-0be2332345f0]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1986

Related Models

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