Seiko Cal. 6690 - 657

Seiko 6690-657

This Automatic model from 1976 features a 37mm Stainless Steel case. With its 19mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-4b80dbc8c125]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
190m
Dial Color
Champagne
Jewels
24j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1976

Related Models

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